Many people don’t know it’s not a generic TLD.

There was some drama about the TLD a while back by people who disagree with the British occupation of the territories, and with the state of the world right now, I don’t think it’s entirely unimaginable that the TLD will be redelegated. We’ve seen the death and redelegation of .tk and other Freenom domains already, which was partially because of a lawsuit, but also because the locals wanted control of their TLD back (because none of the TLD money was flowing into the local economy).

I think the TLD isn’t at great risk at the moment, but if you’re going to build your business, you may want to pick a generic TLD just in case.