Yeah, I spend most of my time at home but when I go out to buy food I'm required to wear a mask in order to enter a store. Entering the pin each time is a pain, I wish I had TouchID under the display for that scenario.
I know people wear a mask and gloves, but only the mask is mandatory at the moment and I usually wear a glove only on one hand (the one I use to open doors etc) so TouchID would be a great option to me.
Even if the pandemic ends before iPhone 12, I do expect people to wear masks in the future, like in winter when the virus could get back or even to avoid the seasonal flu.
Having both sensor is the best alternative, maybe 90% of the time you use FaceID and then TouchID can help you while wearing a mask, or you do a job when sometimes you have to wear gloves and you can use FaceID instead. Just give people more options.