The point is manufacturers will not adapt to using USB-C ports anytime soon because they don't have incentive in doing so and it will cost them because they will need to change their manufacturing processes if they change to USB-C port.
There are other professional uses for a laptop other than video editing? I am not against Thunderbolt 3 I am even more than happy having the technology. My only gripe is for a professional laptop, Macbook Pro has very little option for providing connectivity.