I'll hold you too that, if you're right I'll call you a muppet forever! FOREVER!
Just hold your horses/boats/whatever with jumping to conclusions, I agree that it looks grim (a lot of it) but we don't have any sort of information about scaling yet OR if class mechanics are final (which they're not). I think we all see the same as you do, but we chose to not flip out because of it because it's alpha. When beta comes around and more and more of us get access to servers to do hands on testing we can give constructive feedback to devs (not like they'll listen anyways.. *hurr, durr*) and hope they change things. Took them what? 2 days to get the shitstorm of seals/CS+HotR interaction before they backed off? Same thing can happen and don't forget that with the new system they have for implementing changes to live realms we can see hotfixes going better than they have before.
TL;DR Calm down!