"Critical" would mean something like the Invincible Lore-Masters, which did indeed get fixed.
Buff durations I'd expect to see messed with in a 12.x update. Yeah, they suck, but it should at least be possible to get through the solo content while waiting for adjustments.
[b][SIZE=3][COLOR="#FFFFFF"]Cainwen Ciaphas[/COLOR][/SIZE][/b][COLOR="#C3C3C3"], Captain of Crickhollow, [url=http://tvtropes.org/pmwiki/pmwiki.php/Literature/CiaphasCain]HERO OF MIDDLE EARTH[/url]!!!
[i]I will not be pushed, filed, stamped, indexed, briefed, debriefed, or numbered![/i] My opinions are my own![/color]