Not a good thing when it's taken to absurd lengths. See Lina Khan's attempt to block the Within Unlimited acquisition. The problem with the current administration is that there's no good-faith path forwards to get anything done. If you have worked with the FTC recently you'd understand what a hostile clusterfuck it is.
I want it to be taken to absurd lengths. If and/or when the negative ramifications of discouraging mergers/acquisitions even begin to approach the damage that encouraging them has done to our economy and society, and only then, we can consider slowly reducing the pressure against.
you should really link to something about it that your specifying. Cause it really looks simiar to blocking Microsoft from buying Activision.. A company that makes the hardware trying to buy up all the independant software vendors and have them only make software for their hardware is getting really, really old. I think the only people that would complain are the ones who would directly benefit.