For sure. I often think about this when using my tractor to clean up trees I've taken down, for which there is a lot of grab, lift, hop off, chainsaw, repeat. Or really any kind of hoisting/positioning where the engine is just sitting idle to occasionally move hydraulics.
Via HN a little while back, I came across a guy importing electric versions of things like front loaders, forklifts, excavators, etc. Intriguing, but less compelling if you have to buy 2-4 pieces of equipment rather than one jack-of-all-trades. Although if I were going to have to maintain multiple pieces of equipment, I'd definitely prefer them to be electric!
I can end up putting in more than 2 hours a day, but I think the math still works out for most homeowner use. I think the main thing it doesn't work out great for is long dirt-engaging operations like for actually farming a large field. But it's not like the subcompacts are really made for that either, and they're quite popular.
It would be really interesting to see what could be done with linear actuators instead of hydraulics, too. Although I suspect heat dissipation would be a problem, and working on hydraulics is pretty cool in and of itself.