I'd rather have a swappable compute module than some USBC adapters that are pretty much a gimmick IMO. They're both Intel so I won't be buying either, but I like to see that the push towards modular laptops seems to be going in a direction.
Also whos to say someone won't hack this to use non nuc modules? I'm sure the firmware is locked down but who knows. It would likely be more feasible to hack a new module into it over hoping framework makes new motherboards with the specs you want.