Really man, you can't actually be saying this is a bad bundle? You just happen to have the games... and really for $5 it might be worth the price for the DLC alone.
It does suck that you can't separate them, but you can't really blame them at the current BTA (was under $5 when I looked)
In fact, seeing this 2 days after the Summer steam sale was selling borderlands 2 for more than the BTA, it just tosses an explanation point on how craptastic I thought that (the summer sale) was.
It's not a bad bundle, but its certainly not a great bundle. In my opinion, to be a great bundle it needs to be all DRM free and all support Linux, like the Humble Indie Bundles usually do.
The single key per tier makes it even worse.
Ah, forgot you were linux guy. But I was addressing more the quality of the games, the fact they had never been bundled, and the very reasonable price. I think it's a "Win" as far as what we usually see from most sites.
But of course, that's just my personal opinion... but I'd rather get a older big named title I might not, or even might have than a bunch of early access things that look like they came from the early 90s.