It seems pretty obvious that it's no more dodgy than any other app they have. Despite people crying loudly about how untrue it is and how unfair it is when sites block people in the EU, the EU's regulations require a lot of work to comply with (even in the case where you are already complying with the intent of the regulations). Clearly here Meta's number one priority was getting this app out quickly. There are a ton of pretty basic features missing. If supporting a release in the EU required just weeks of work, I'd expect that they'd have chosen not to delay the release for that. Given the extra scrutiny that Meta is under, I'd put the amount of work required at more like months.