I think hot wax has a lot of benefits as you state. I just don't think saving time is one of them. It's burdensome. I started doing it this year for our fair weather weekend bikes which get very low milage. They never get wet and the low milage means I can go months between waxings. So here the clean leg benefit starts to win.
It definitely can be burdensome if you don't have a good system in place. But once you do it does save time in maintenance and cost in replacements. Depending of course on where you live. If you live somewhere sunny and nice, anything works. If you live where I do there are things that work and things that definitely do not.
On the commuter and touring bikes it's totally the opposite situation. I will never waste time waxing those. I almost never wash my commuter bike (several years without washing). Squirt, rag, done. When I was younger maintenance felt like hobby tinkering. Nowadays I realize it's nothing but yet another household chore.
Samesies! That's what I think too! That's why I like doing it less. And with hot waxing I can.
Now I don't know where you live but judging from your comments I'm going to assume it's not really challenging weather wise. For us here squirt and wipe isn't really viable unless you don't mind bad shifting, drivetrain losses and replacing chains and drive train components often.