I think this guy has some balls playing it this way.
I would "mask" the wrong notes and play them soft.
So koodoes for wearing those wrong notes with pride.
I don't know what chopin was smoking when I wrote this, but I have a feeling he played it like you. He put dissonant 1/2 steps everywhere on purpose, and they are to be heard, not masked.
I've heard prettier versions of this of-course we all have. But is that "A" section actually suppose to be pretty?
That's the dilemma.
Besides the contrast it creates with the B section is priceless no?