Whether she is 'good' or 'evil' is in itself a matter of perspective.

Before Endwalker, it was suggested by a handful of posters that there could never be a good reason for a character or faction wiping out a civilisation or race right down to the very last man, woman and child.

It's very curious, then, that Venat is the exception to that rule in the eyes of some of those same individuals after it turned out that the Sundering was very much a deliberate act.

As for 'predictable' tropes, I find it curious that to some the 'evil goddess' trope would be some grave sin in the eyes of a some, but a gaggle of the more stale and overused tropes elsewhere are actively cheered on and encouraged.

Each to their own, I guess. To me, Venat is one of the most sinister villains in a Final Fantasy game to date. Others are free to believe otherwise.