I'm really not sure what to think about this. On the one hand, the 2-3 games a month thing was mindnumbingly slow for NES Online and I was disappointed when Kirby's Adventure wasn't released until five months after launch (when it arguably should have been a launch title).
On the other hand, this could mean that the gap between game releases could be even longer, and the games possibly even fewer. I'm really hoping Kirby Super Star will be one of the first games they add post-launch to SNES, but at least there's a couple Kirby games there already this time.
Two more NES and four more SNES games were announced for Switch Online. The NES games are Crystalis and Journey to Silius. The SNES games are Star Fox 2, Super Punch-Out, Kirby Super Star, and Breath of Fire II.