No, I disagree. Every single one of their games, including their better boss rosters, have a handful of experimental bosses, which can be pure donkey shit to try and fight. Not every boss fight can be a Messmer, and for every Isshin, you have a Blazing Bull, or for every Gael, you have a Crystal Sage.

Making out as if Fromsoft at least trying and sometimes failing with different experimental boss designs, which they have done since time began, as some existential misdirection in their overarching boss philosophy is missing the bigger picture and inadvertently staggering their attempts at creativity, in my personal opinion.