Couple thoughts:
Other factors contributing to snowballing:
Promotion feature--this makes it very hard to fight back even if you have equal numbers. This is especially true if there are healers, which aren't much a factor in this alpha but have been in the past.
Weak defensive building--I think this is the biggest factor in the current alpha. The current alpha has weak defensive buildings. As a result, players have a more difficult time going back to their safe space to regain strength.
Cav dominance--cav are the dominate meta for a lot of reasons. But it's difficult to repop with cav because of cost, slow train times, and the likelihood of continued harassment.
I would focus efforts on mitigating the factors that contribute to snowballing.
You're right that it has a snowball effect but I don't find it to be problematic. This seems to be one of things where the advantage is earned. It is also most pronounced in early/mid game, which I am fine with since it is hard to kill a CC before p3.
I don't find this a problem at all. It's relatively low numbers. (I actually think loot should be a bigger part of the game)
Agree.
Without commenting on the merits of these two, I think these are entirely separate proposals that may or may not have some impact on snowballing. You should also consider that, while these will be available to defending players, they will also be available to attacking players, so the snowball effect may become greater with them too.