I want to preface this with I don't have an issue with Tesla (the company). I wish the board would replace Elon with JB (I know will never happen) though. Everything that follows is under the assumption that folks really hate Tesla since folks see Tesla and Elon as 1 entity.NACS no longer has anything to do with Tesla. It is an SAE standard called J3400. The move is better for them vs not as it is a far superior plug vs CCS1. Now, if they want to back out of accessing the SuperCharging network, that is a separate issue, one that only hurts their customers as the deal gives them additional options that they can decide themselves if they want to use.
I know it is a SAE standard now, but folks are still going to associate it with Tesla especially when it is touted that you can use their network for charging. It is a perception thing.
I'm still curious if it really is a better plug than CCS1 with high rates of charging (Telsa SC have derated due to heat at the plug end). Maybe the V4 stalls are better (nothing around me has been upgraded to them yet).