I bet the bionic will be delayed just as much. Besides, both the phones are awesome, some people just perfer one a little more than another. Think of it like this, would you rather be first string QB or first string HB on the steelers. You may like one more than the other, but you should be happy if you get either.
Hmmm, I seriously doubt the Bionic will be delayed like this. No reason for it - Motorola got the Atrix out without a hitch; two weeks ahead of schedule in fact. The devices aren't much different.
I'm not so sure people are really preferring one over the other either - the Thunderbolt was at least supposed to be here by the end of Q1 (and I know, I know, they're still meeting that goal, whatever) and the Bionic was scheduled for Q2.
I think it really comes down to how desperate people are to get off whatever device they currently have. I know that was my motivation. I think most of these people would be just excited for the Bionic if that was coming out first.
Not to say HTC has some distinct advantages over Motorola, none of them seem like decision-makers in my opinion.