My thoughts exactly. This will, at least in the short term future, doom this browser to significantly less usage & market share than Safari or Firefox, if not doom it to 3rd-4th place permanently, at least on Macs.
Sure, I'll check it out on my Intel Mac, but for those who have a variety or multiple Macs, most of those people won't want to get attached to something they can't use on all their Macs. How much extra cost would there have been for a Universal Binary version? Seems like a bad decision to me. If it was a huge complicated program like Adobe's Creative Suite, I could understand, but a browser too expensive/difficult to make a UB version?
Sounds like a halfhearted Mac Google effort all around to me from the long delay to release it, then it doesn't even work on 15-25% on Macs in current use.