A brightly lit screen and hand-eye coordination are not 'compromises' unless your goal is to build a device that is all things to everyone. There are non-tablet devices with highly tactile physical input, and there are also these mysterious inventions called 'light bulbs'.
Thing A requires some things to do X. Thing B doesn't require these things to do X. One is a superset of the other, therefore one is clearly better, no matter what the semantics.
Thing A requires gasoline and a starter motor to get you to places. Thing B doesn't require gasoline or a starter motor to get you to places. One is a superset of the other, therefore a bicycle is better than a car no matter what the semantics.
Are you serious?
The point is that tablet computers get used in different scenarios from desktop PCs and in different scenarios from physical mixing boards. Pick a device designed for your scenario, then complain if it's not fit for purpose. You're not going to have a mixing board on the train with you and you're not going to use a tablet to do a live mix at a dimly lit concert.
You can't see your hands.