As I saw it upon first reading, the only reason this ad might might have been considered insensitive or in poor taste is that Piaf suffered temporary blindness as a child, coupled with the fact that the ad was for eyeglasses.

We've discovered that very few people have been aware that she had been blind as a child ~ and that most of us who do know about this bit of personal history only learned recently, from the current film La Vie en Rose, which may or may not be strictly accurate, anyway.

Insofar as anyone objects to commericialization of their favorite music and/or artists, what else is new? If the admonition to "get a life" is somehow inappropriate, what else can I say?

Get over it!
(Or, in the words of Peyton Manning, in yet another TV commercial) Rub a little dirt on it and walk it off!