Specasvers Edith Piaf Advert

This is the latest advert from UK eyewear chain Specsavers. It uses the inherent English lack of understanding of foreign languages (in this case French) to make a joke that Edith Piaf is in fact singing the same words as appear in the sutitles.

The song title "Je ne regrette rien" ("I regret nothing") is however a sufficiently well known French phrase such that it would be understood and recognised by most viewers. The song therefore ties in well with Specsavers ongoing campaign slogan "You should have gone to Specsavers" - i.e. you will regret it if you choose another retailer.

All well and good. But for anyone who actually needs glasses, surely this advert will just appear as a short film of Edith Piaf singing in French, with some smudged and largely illegible words appearing below it?

Which is hardly going to help Specsavers very much at all is it?