I completely agree that the service on the 360 was superior. I used the 360 all last gen. I also think that Microsoft has been more proactive so far this generation with its updates, and I don't know why people are arguing against that.
However, the gap that existed just doesn't exist anymore for me and a lot of other gamers. Party chat was Microsoft's big advantage for me and my friends that would have kept us on that system regardless. That advantage is now gone (and arguably swung in Sony's favor at the beginning of this gen), while Sony's value advantage in the form of PS Plus remains while Microsoft still defends its comparatively worse analogue.
So, yes, Microsoft has shown to be more responsive so far. That should be disconcerting to anyone going PS4 only. But you can't act like it's still last gen. Sony made strides with the release of the PS4 while Microsoft went backward to me and other people. Microsoft's last updates and Sony's relative inaction don't change that.
I agree with you but aren't you dismissing Sony's inaction?