I don't think that is the case... At least when it comes to nen anyways. Gon's transformation was not the result of 10 years of regular training or even the result of 10 years of training the way gon had been going so far. The form itself has to be way superior to anything gon could ever do by training how he had been going at it so far. The issue here being that gon traded the whole of his potential and life for it. Gon can train insanely for a number of years but would he reach the absolute greatest potential he has? I doubt it simply because gon would be doing other stuff in the process. Like he always has, he would have traveled and do a number of things. I would argue that gon attaining his maximum potential would imply him going into the same level of insanity netero went through to become the inhuman monster he was. Netero spent 10 years doing absolutely nothing but training. There is not an ounce of exaggeration to that, we are literally talking about that time dedicating himself to praying and punching. We actually saw that in the manga. Gon trading the whole of his potential for power should be more along the results of that, not just the training he had been doing so far.
If I’m not mistaken, I think you’re trying to say that due to the vow, he was transformed to what he would be like in his fullest potential, what he would be in his prime. If that’s true, then I think we won’t be seeing Gon anymore. We already saw what he would be like if he trains non-stop for decades (It's unlikely that he will change his nen-type, its related to his character). Plus if that was his full potential, I’m really disappointed. I always thought that Gon will be the strongest in the manga, and from what we’ve seen in the manga, post-rose Meruem is still stronger. And honestly, I think that there are nen-users much stronger than post-rose Meruem. He will find a way around his current state and he will be much more stronger than Gon-san, in time off-course.

Or, the manga will be centered on Gin from now on.
I never really understood all this fuss about Ging. Does he need to be some demon on a separate level from all the top tier characters in the series? Is being equal or around the same level as any other human character not good enough?
Togashi himself started all this fuss. Ging was a legend from ch 1. Do you think it was all for nothing? Think about it, Don Freecss explored the whole east of DC and is probably exploring the west right now, and he’s doing it alone; to all who think I’m overestimating Ging, face it, some people are just better than others. The apple doesn’t fall far from the tree.
I am not saying he has no chances but they are rather small, in terms of physical strength, speed and durability the RGs are all inferior to Meruem to various degree but they are still monsters. What makes them more special are their abilities, Pitou is the one with the least chances to win, Netero would need to hit her a lot but she can take her distance and heal. Netero's movement speed is not a match to the RGs, she could use her Doctor Blythe to slow her down though, she healed a broken arm and was alive after taking Gon-san's Rock to the head. As long as Pouf doesn't break his body he has higher chances to win than Pitou, with scales + flight, he will able to read Netero's thoughts too. I just can't imagine Netero beat Youpi.
I agree, Netero himself said that he was weaker than Pitou. But then if you think about it, he was only half as strong as he was at his prime. If he was at his prime, things would have went totally different. Being half as strong as he was at his prime, Netero managed to be a hell of an opponent for Meruem. And he also said that it has been half a century since he was the strongest. That’s why I’m sure there are nen-users that could be as strong as Meruem, maybe even stronger.
I still don't think any of the royal guards could get a single hit on Netero.
I doubt it. It may take a while, but eventually he will die. I mean from what we’ve seen from Meruem’s fight, I can say that Meruem can survive 10 Neteros, but Netero can’t survive a couple of Mereums for 10 seconds.
P.S. I wonder why they went for all that trouble. Why didn't they just give Knov two rose bombs and tell him to place them in the palace and then escape with his Hid-and-seek before they blow up. The mission would’ve been successful without any losses.