"lawsuit over R-IT patent infringment." is no big deal for generics whose business models are revolved around lawsuits and filing sNDA. All you need is one generic who files an sNDA, the other leeches would follow.
Even if regulatory exclusivity expires an SNDA is required, I believe, and that's what I was referring to. So your fist quote trumps the second quote. Unless an SNDA is filed prior to exclusivity expiring.