>>Being able to come to work and plug in a single cord and have it drive my mechanical keyboard, headphone amp, monitor, and power is pretty amazing IMO.

Just imagine having a dock, and not needing to plug any cords :-)

Also, like most things Apple removed (I'm looking at you, 3.5mm), how has the removal enabled your use case?

To put it other way: you could have everything you outlined even if they had magsafe + USB-A

but with removal of those things, we can't have things we want/need/desire, for no appreciable gain to you.