Eastsiders won't lose direct-to-downtown options from Como-Maryland; the buses on Payne, Arcade, E 7th, etc. will continue to go downtown, and you'll have Rush Line and Gold Line on top. The people losing their one-seat ride to downtown (assuming Route 3A goes away, which is not clear) would be people on Maryland/Como between Rice and Snelling.But still. People hate transfers, even if it's to another aBRT. And the eastsiders are much more likely to want to go to downtown St. Paul anyway.
In fact, Como-Maryland *creates* a one-seat ride from most of the Eastside to downtown Minneapolis, which I think is a worthwhile trade-off.