Yeah, in a race around here I would pretty much never leave the aerobars almost.
Training is where I'm at for it wanting to shift from the brakes. I wouldn't need 2x to even train here. Just that it is annoying to go on a 2hr training ride with it and deal with reaching a hand off all the time to change gears.
As sometimes also in training if I ride for 3 hours on it, it isn't setup to be in aero for 3 hours comfort wise. It's setup to go fast in a TT. So I like riding sat up like you're on a road bike for parts of training rides. Meaning, hand off to change a gear a lot. I get lots of meaningful time in aero, but still......would be nice.