That is a perfectly sensible definition of actual professional use.
Not two days ago I presented at a conference where I had to plug an HDMI cable into my laptop, and in the middle of setting that up, I transferred over a backup copy of my presentation to the house laptop on a USB stick.
Now maybe I am not a professional in your eyes. But I was wearing a suit!
I already carry a dongle to convert Thunderbolt to VGA, because you can't count on conference room projectors having a connector made in the last decade... Now I just need to carry one more for HDMI.
I'm fairly certain that a USB-c to standard USB port will also be a dongle that every Macbook Pro owner will need to carry. Apple should bundle 2 with every Macbook Pro, but the whiners would still complain...
You are very much a professional in my eyes. In which case I don't see a problem wit the new MacBook. It has four ports each of which supports USB and DisplayPort.
Yes, you need either a new cable, a new flash drive, or an adapter. But don't pretend that makes this laptop totally unsuitable for your use.
Not two days ago I presented at a conference where I had to plug an HDMI cable into my laptop, and in the middle of setting that up, I transferred over a backup copy of my presentation to the house laptop on a USB stick.
Now maybe I am not a professional in your eyes. But I was wearing a suit!