This change is awful, awful, awful. I know people tend to hate anything new just because it is different, I have been guilty of this myself, so now I try and give new stuff a chance.
Well this new Google+ linking is seriously a major step backwards. Major. I finally gave in and created a Google+ page and I STILL can't comment at all on videos. I can reply to comments, but not create news ones. This is AFTER creating a Google+ page, after it badgered me for months and months to do it.
I am disgusted. The comments system has been made a lot worse. Even the way comments are being ranked, according to Google+ and your circles and things, has totally reduced the quality of comments.
This is a real jump the shark moment for Google and I hope they fix it, fast. At least in the midst of all this bullshit they have fixed one of their last screw-ups, now I don't have an extra click to change things like video window size or resolution. You know, like it used to work.