That isn't true at all, What works for some players does not work for others your method might not be the right method for everyone else it doesn't make them stupid it makes them different strategies. Hell I have seen some guilds cleave them all the way down to 10% some people are better at handling more complex strategies that require perfect execution.
That is the difference between top 10 and top 25. I've been part of both of those numbers and the difference are quite dramatic as to what some players are capable of doing or are not capable of doing.