I don’t think the DS TB is too hard from a game standpoint. It should be hard. The only issue there might be that DS toons are just so far behind in power level from LS and so weren’t priority farms for most people.
I do think it’s pretty silly from a lore standpoint, at least when compared to the LS TB. It’s like the devs don’t realize the rebels lost on Hoth. Lost pretty badly in fact. Especially on the ground, the Empire pretty much just marched right through them on the ground. It was a pretty successful retreat due to good pre-planning with the Ion Cannon and such but that does not equal a victory.