I suppose it depends on how you view it. If its a free update then it can't be seen as a cash grab. Also, regarding priority to fix other parts of the game against this, I imagine this is a completely different set of developers creating this as opposed to the ones that need to look at Spec Ops.
I imagine it could bring microtransactions if they have BR with a battle pass but thats a tried and tested method of making money and they still need to make money to support the game (not Activision, IW) so developers can support the game further. This is one of those where we can probably only judge once we see it rather than dismissing it early.