This could end up being more popular amongst the viewers than standard 1v1 as the games could contain feats that are impossible for one person to achieve.
In viewers point of view they would only notice the more awesome matches the format could bring, so as the matches are better i suspect that many would rather watch a Team Melee format than the standard one when given the possibility.
Having something like 3 drops at the same time and 2 main armies that fight at the same time and still keep up the production is possible in team melee. Problem would be that it would take a lot for a commentator / observer to keep up with the game at that point. At least for anyone else than Nathanias.
Something to think about when figuring how to step the starcraft esports format further.
Would not necessary be the same players who would reign in team melee than in standard. I would bet that Maru + Trap would be a good combination though.
Another strange thing is i cannot find good 2v2 tournaments and even the team tournaments are held in 1v1 format whats the point in that but i see there is The NA Apprentice "2v2 League Qualifier 2" in the frame.