Turning a toaster into a cat feeder is tinkering, not professional hacking. There's nothing wrong with tinkering. But it's the difference between wiring up a Raspberry Pi as a heating controller, and building a company that sells fully licensed and certified heating controllers all over the world with support infrastructure.
One is hobby project, the other... isn't.
A useful definition of a professional tool is one that lets you forget you're using it because it's so transparently intuitive you never have to think about its needs.
I don't think the 2016 MBP does that. The ports are (literally) a side issue. The problem is more that Apple are thoughtlessly losing their reputation among professionals, because Cook, Schiller and co don't seem to be thinking hard enough what they're doing, and don't appear to have an understanding of what their professional customers are looking for.
...Which is not something super-thin for the sake of it, or with a gimmicky touch bar. It's something expandable with ports that "just work", no physical or metaphorical rough edges, with the option to have decent memory (i.e. 32GB) and a reasonable processor speed bump.
This shouldn't be hard or controversial, but for some reason it seems to be beyond Apple's understanding.
I'm hardly a hater. I bought the 12.9" iPad Pro last week, and I'm loving it. But the laptop format is challenging because you either stay conservative, or you go full experimental with (say) a dual-display clamshell. or even a touch panel instead of the trackpad.
Half-hearted innovations like the touch bar glued onto an ungenerous spec look like gimmicks for the sake of it, not serious attempts to improve professional productivity.