Well, ideally, they'd sell the amp portion with the audio interface and processing included and allowed you to control it from any mobile device. And if they really wanted you to mount stuff straight on the thing, heck, they could sell you more or less universal mounting adapters with a USB C outlet also charging your device.
Henning applauding them for this to be an all-in-one unit is BS IMO. Because if I was using such a thing, I'd very often be happy to just place it somewhere and have my mobile phone control everything next to me on a couch. They could even sell you a wireless transmitter which would recharge once it'd be resting on the unit.
Yes, there'd be ways to get the best out of all worlds, but instead they decided to make this a blues lawyers home gadget.
And btw, even the blues lawyer would be angry when throwing the thing down because the input cable is connected at hip height, so once there's just a little pull, the entire thing will not last standing for long. A wireless transmitter would solve that as well. Or, should you decide to get the stand, an input jack at the stand's bottom with an invisible audio connection running inside.
Next time you plan to do such a thing, remember to ask qualified people for consultation.