Any remotelink is vulnerable to jamming attacks, but those aren't novel issues.
There are many ways to mitigate and bypass the jamming attacks, including operating different control links, or multiple different bands, hopping, etc.
This is also where "AI" or advanced algorithms might come in, and enable the platform to continue on to its objectives unaided, or initiate some sort of failsafe to regain communication links, etc.
On a somewhat related note, this is similar to why 6th gen aircraft will include stealthy manned platforms, that are in close proximity to command and control various drone wingman platforms, as opposed to being remotely piloted from a Nevada Airbase.
Overseas colonies are expensive, when they can't be brutally exploited, and the UK doesn't have an expansive global empire to suck the resources from anymore.
It does look like a sticking point here was a strategically significant FOB, Diego Garcia, which will not be handed back over.
So the UK has to suffer another embarrassment that reminds them they're no longer a global superpower, but they also get to save some money, and retain access to an important strategic asset.
They might also get some good press for continuing decolonization, I can't speak to that, as I'm not sure how, or where, they might have felt any real political pressure over this.