This is all pure speculation, but...
The way medical indemnity works is you pick a company when you're a student. On reputation, or cost, or who has the best freebies (because students...) You pay them yearly and, like house insurance, tend to stick to them unless something goes wrong.
They will have their own in house solicitors. Who will chose the barrister who is to represent their client on the basis of their experience and relevance to the case (and probably - don't know - old boys network.)
Those barristers are invariably specialists in regulatory work.
The doctor normally doesn't get to pick which barrister is used.
So if he is represented by an, uhhhh, alternative barrister that means:
- He's likely paying for it himself.
- He's probably had a fall out with the legal team his indemnity has appointed, probably over a disagreement on broad strategy.
The natural consequences of that are:
- He's an idiot
- He's planning on arguing that he's a martyr for the trans cause.
Personally, I think it's unlikely. I reckon he'll be represented perfectly conventionally by a regulatory barrister.