Ah, now I see it. I think I'd like to see what that looks like at narrower widths, then, eg. mobile and limited display. I feel like you've made an assumption about horizontal space, since this metabar is still wider than the comment section.
I predict that there will be two major complaints: First, that the width is a bit awkward on large monitors because it doesn't align to anything nearby (the closest element being the full-width title bar) and yet is not as narrow as it could be if it were fit to the contents (because of the additional space that's still between parts of the metabar). Second, that things are still spaced and grouped like that; it makes for interrupted reading and puts links in awkward positions.
In short, I would rather have everything in the metabar huddled together in a full-width bar, and aligned either left or center depending on the overall page layout. The grouping and spacing of information is clunky and hasn't provided any benefit that I have seen, aside from keeping related information together when line wrapping. The problem is, too much information is being kept together in that manner, and it's resulted in some pretty ugly breaks.