Not that it makes it any better or worse, but it helps to remember that Atlus porting and rereleases games has pretty much more or less been going on since either the original SMT on the SNES or even the original MT on the Famicom if you want to count Kyuuyaku Megami Tensei. Up until the Persona 2/PS2 era in general, I'm pretty sure that most every notable game they put out (read: not stuff like Majin Tensei) saw at least one port, with a lot of them getting several just within a handful of years. Even Persona 1 appeared on Windows PCs over there after the fact, for instance. If it feels more noticeable nowadays, it may well be because that trend by and large subsided in the years following SMT's official launch overseas with Nocturne and has only flared up again with Persona specifically and while 3 and 4 have had a lot of rereleases, SMT 1 and 2 alone put them to shame, let alone before any other games enter the equation. To be fair, the merchandising and licensing surrounding Persona specifically has probably been stronger than what the SMT games ever got, but there's still some obtuse stuff that I see pop up when I shop around on Amazon Japan, so I wouldn't disregard that past history entirely.
Personally I'm ultimately pretty okay with it overall. Fans may always prefer entirely new content over rereleases, but if that stuff is a sign of success in its own right, I'd rather see Atlus keep going down that path when its has to for its existing games in order to make the new ones that it does produce than either go out of business or lose its edge as a developer like a lot of the other mainstay RPG houses seemingly have in recent times. If my copies of Persona Magazine are anything to go by, some of it may be a blatant cash grab for fan affections, but at least they make sure you're getting a quality product out of it.