The page definitely looks much better now. The only minor thing is that the the old units 13 and 14 will no longer appear in the list of translatable units for that page, and so the translations of those units will seem to have gone missing. Of course this only affects the existing translations. I assume that all affected translators are experienced enough to realize that they can find the "lost" content in the page history.
You are right about the comment field. Somehow I had convinced myself that it had gone missing, but there it is - right in front of me
Btw. I have another odd problem. When I try to open a translation unit in a new tab, I just get a completely blank page. Not that it bothers me, but it might happen to others as well. Did I do something inadvertently?