I'd rather (and think they should!) see agents get access to my SMG buffs and long HoTs than my NCU buffs.
And an agent doing long HoTs would be wanted in a team, almost as much as one doing NCU buffs, which would continue to make agents worthwhile while not destroying pretty much the only unique thing about my profession (I consider GA a unique thing about an item, not a profession-level thing, as access is limited - and yes, I have GA2 and GA3).