I can't even with posts like this. Insomniac have made Spyro, Resistance, Spider-Man and Ratchet as their main successful franchises. Of these, only Spyro and Ratchet are even remotely similar and even that is a stretch since one is a collecting platformer and the other is a 3rd person shooter platformer.
You seem to have the wrong dev studio in mind. If anything Sony Santa Monica is the one that sticks to what they know since they haven't released a major game not called God of War since they have existed.
https://en.wikipedia.org/wiki/Santa_...ames_developed
https://en.wikipedia.org/wiki/Insomn...ames_developed
It go's further then this to, Insomniac is the most diverse studio Sony owns. They where making Ratchet and Resistance games at the same time, they are now making Ratchet and Spiderman games at the same time. ND hasn't made anything besides Uncharted or TLOU since the PS2, SSM has never made anything worth a damn besides GoW, GG was a shitty Killzone studio that still has to prove a lot with Horizon and another new IP eventually. Sucker Punch is probably the closest to Insomniac in diversity going from Sly to Infamous to Ghost but they take a half decade to make a game these days while Insomniac is on a bi yearly release schedule. I wouldn't die on this hill mate, just admit to the bad take.