Tbh I think it’s cool, and since most ppl wanted proton to release stupid things like another browser or another encrypted chat app, a wallet fits right into that while being something that doesn’t need that many manhours to be maintained.
I think this will benefit them, proton is more mainstream than you might expect
(also, unlike brave, they are a profitable business without vc and a non-profit org, so there are no intentions to sell your data)