For those who believe in legato fingering, I challenge you to play Chopin op 10 #1, with no pedal, and make it legato at the marked tempo. This should destroy any notion of legato fingering being possible.
Can we not find a balance.. in that physical legato absolutely should be performed when possible, but that there are occasions in advanced repertoire that make it exceedingly difficult to perform without placing the fingers under extreme stress.. I'd rather play legato with pedal in the places necessary and avoid the stress - since the other option can far to easily lead to injury, and I like playing more than I like not playing because it hurts.The point is valid, if comfortable physical legato can be achieved then that's how it should be played.
While I agree with your sentiments generally, I wouldn't agree with the last statement.