More opportunity to write games. It is infitenly easier to get into writing games now than back then.

Also, don't underestimate the "juice" that these days is relatively easy to do but would be expenseive back then. Balatro has dozens of very small things going on graphically that make it feel real nice to play that most certainly not be free on SNES hardware.

And like vampire survivors is just Robotron/Smash TV with infinity number of sprites on screen. The limitation is very much hardware in that case.