I think it's pretty different like I said. PS3 barely had any third party support thanks to the difficulty in development because of the Cell thing and Kutaragi not caring nearly enough about third parties. Portable systems also existed and were viable for third parties that weren't aiming for high budget AAA experiences (that was exactly what the PS3 was promoting as its main focus).Atlus did the same thing with the PS3 and to a lesser extent the 3DS. Atlus is making cheap sequels/remasters while EO6, SMT5, and probably Catherine 2 are in the works. The problem for the Switch though is that they can't just put 3DS games on the device and get away with it like they did with DS games on the 3DS.
Switch tho is the only new portable in the market, isn't aiming for the best graphics ever, isn't as hard to develop for as the PS3 was (it's weaker than the PS4, a system that Atlus was already developing for).
There's a difference between "becoming harder to develop for" and releasing their first and only game at best in late 2019. If other companies can have smaller games for Switch so can Atlus. I think people vastly overestimate how "console-ish" a game has to look like on Switch to sell. If anything, it needs to start selling to the portable crowd (which is bigger than the home console public in Japan) and software like that can help.Not all games needs to be high budget but what are you gonna do when even cheap hd games cost more than your 240p ports of nds games?