Even with J1772, 0.3C bulk charge should be pretty gentle on the batteries.
Depending on your daily driving needs, 110V can be okay even with a very large battery like the Nissan Leaf's 24 kWh pack.
The Leaf uses around 350 Wh/mile; 1.5 kW at the wall yields a charge rate around 4.5 miles/hour, which can recover 35-40 miles over a typical overnight charge. Most users would probably need the J1772 plug, depending on their typical daily driving distance.
A bike with a large battery will still only use 150-200 Wh/mile even at highway speeds; the same 1.5 kW charge rate yields around 7-10 miles/hour, which can recover 60-80 miles over a typical overnight charge. Some users would definitely need a faster charge to keep up with their daily rides, but probably fewer than would need it for a car.
Still, it's a nice convenience to come home for a short time and leave with a nearly full battery. 110V charging doesn't get me there; I got home from work + running errands around 7:30 PM (~30 miles and ~40% charge used), it's 10:40 PM and the bike is not quite topped off yet.
Edit: In a year of riding the Zero typically 25-70 miles per day, I've had:
* 2-3 occasions where the charging bike's SOC was too low for a trip
* 0 occasions where the bike was still charging when I left in the morning