Of everything that you've mentioned, I've not found a single one of those to be the case in the multiple games and hours that I've put into the Beta so far.
Many of the games I got into, I saw small groups trying to maneuver and succeeding in pulling off simple tactics.
The last game I played was the first time I saw the Rebels win by taking out the AT-ATs and that's because the Rebel players actually started to concentrate their firepower on the AT-ATs, while only a small percentage focused on the Snowtroopers.
The only problem that I've run into has been about 5-6 game drops, and even then it was so easy to jump into another game that it wasn't even a glaring problem, more like a small annoyance.
[member="Darth Kentarch"]