Except AA was only about 5-6 hours long, which can normally only be achieved through speed runs for HotS and WoL. Not to mention the fact that the expansions added new units for all the armies. USF + OKW + AA is the price of 2 Starcraft Expansions, while only getting you nominally more units and a single player campaign that was extremely poor for it's cost.
Umm, replayability value for AA is incomparably greater then for any SC2 campaign.
And are you REALLY arguing that adding 6 units is better then TWO WHOLE ARMIES? At this point I wonder if I talk to a frog who learned to type english.
The fact that Relic literally did not make a single new unit for the AA campaign is rather telling.
USF mortar?
Rangers?
Cavalry rifleman?
Repair halftruck?
Various new off-maps?
The sherman from the last mission?
Why are you talking about parts of the game you obviously NEVER played yourself and instead spit usual, inaccurate bullshit?