Because we saw that the definition of talent varies from where you stand .
Kaiser was said to be a talent among the current generation off that family .
The more you level up , the more you face previous generation .
For example Yuri was a talent when seh was a regular , among the young guy in her family , they were probably less than 50 years old , after that when she climbed she had to face previous generation talent who had 200 years and was still called a talent . Until she was HR and was still called a talent among jahad princess who became ranker and HR .
Simply put , someone who is considered talented at a certain level won't be considered one at another level .
Why because there are different talent in TOG , there are guy who are considered unique talent in 100 years , other unique talent in 500 years , other unqiue talent in 1000 years and other more .
The thing is tha while in real life you will never meet a talented people from 500 years . But in TOG if you climb you will meet them .
For example all HR are genius and at regular they would have be considered beast or real genius but when they become HR , they are confronted with other genius off other generation .
That is why even if Kaiser was considered a genius as a regular , it only means she could have a HR , but closing to top 100 .
For example Hoaquin was considered a genius in his family but he still needed soul power to get to 100 level , evankhell needed her ancient , Kallavan is EoB .
We now see top 100 as trash , but top 100 is something that even HR can only dream about . It is a monstruous realm .
I think it is the reason consider Baam friend like Androssi can reach realm but i have no belief that any off Baam friend can reach that realm .
For example Holan likely never faced any real rival in his climbing , he is likely a little like a Yuri in his family .
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