Unfortunately the augmented Gridarvor tramples all over the updated Claustrum's Pet Accuracy.
That said, going to the main topic at hand 10.000 isn't too much, it's a fine number and for a while SE's created a very reliable source of income for the many people who're willing to work for it.
My beef, like many other's, is with how they handled the Mythic/Ergon weapons, which are now in many cases the worst choice out of the bunch. Heck, I don't even need to bother upgrading Nirvana (yet).