This made a lot (more) sense when even corded charging was kind of slow and meant that the use time to charge time was pretty bad; ~2 hours to charge: ~12 hours to use gives an optimistic 6 use/charge time ratio, but now that fast charging and USB-C power deliver devices can charge in ~30 minutes and last ~20 hours that gives a use/charge ratio of 40. Given that if I have to leave my phone on a wireless charger for much longer; I greatly increase the risk that I'm picking up an undercharged phone.

But like in your use case, it's a nice to have thing that provides standby charging and can prevent your phone from at least loosing power over the day. Honestly, I think the best solution would be a USB-C dock so that you would have the convienience of wireless with the fast speed (and PC connection potentionally) of a wired connection.