This is the main reason why jobs become progressively more homogenized over time.

PLD has an additional passive block proc effect on top of the standard parry that no other tank has access to as part of its aesthetic. People fixate on a singular case where block doesn't work. Block gets completely removed next expansion and replaced with %DR effects on Sheltron. Players next expansion are confused over the sudden homogenization. I'm all for the 'unique strengths and weaknesses' approach, but people have to buy into that mindset first.