Following chapter 83, I see a lot on twitter saying that i find EZ superb interesting. Here I say to myself ok to find that a manga is very interesting, it must necessarily see a person being killed killed a bullet in the head. Man likes to see violence, blood and seeing people get shot. For mashima, people say that he learned from his mistakes, they may think that way. Indeed, the concept of FT is friendship the redemption of the bad guys and avoid killing characters and we see it again in FT100YQ. For EZ at the moment not too much friendship or no redemption for the wicked. But I won't say it's a mistake but more that mashima changed concepts for EZ. So for me, I don't see that mashima has learned from his mistakes but rather change his concept.