I’m not necessarily agreeing or disagreeing with the proposal but to quote the article (translated into english)

However, the study notes that the sector owes much of its growth to the opening of new outlets rather than to restaurant attendance, which has actually declined slightly. This is precisely one of the arguments put forward by Green Party lawmakers in their amendment to curb the opening of fast-food restaurants.

Which seems to me more like a factually based proposal than one based on ‘feelings’.

However I’ll agree that if the purpose were to tackle health issues stemming from nutrition there would be better ways to tackle the issue. On the other hand, even while not necessarily the best way to deal with this, coming from a health issue related viewpoint, a decline in growth of big fast food chains like McDonalds, would inadvertely aid in health related issues either way.

Either way I doubt the main goal of this proposal is to improve on health issues though, to me it seems to come from a ecological background.