The opposite will be annoying as well: I sometimes order products from non-European companies which use UK sellers as their official resellers for the EU. They will probably need to find new EU resellers outside the UK.
Yes. Of course the same applies not just to resellers, but also to companies properly located in the UK. I order quite frequently from Rapha and Wiggle and hope they'll have EU-based fulfilling in place.
Same here. I order quite frequently from Rapha and Wiggle and hope they'll have EU-based fulfilling in place.