They went the other direction for the 2018 model - my work MBP has a death grip on my non-Apple USB-C cables and I have to use excessive force to remove them.
Same, but with Apple-branded cables. I fear I'm going to damage them every time I take one out. They're near-permanent once connected.
[EDIT] all Apple-branded because when I've needed one locally stores around here still don't really stock non-Apple USB-C cables. Some A-to-C for Android phones, maybe. That's about it. Shelf after shelf of various cheap Micro-USB cables and chargers, though. I really wish they'd left an A port or two on these things.
I have a sample size of 1 for Apple branded usb-c cables which is the one my Mac was supplied with, so I assume that was tested with the Mac, hence why I only have this problem with non-Apple cables. And indeed, the apple cable is loose in my other devices, though not as dramatically as their cables are tight in the mac.