I am not from UK but I would like to give you an idea how it was in the past on continental europe. We are not allowed to dock our dogs for several years in Austria, it is not about showing, it is simply forbidden. In the beginning many hunters complained about it and yes it was looking strange in the beginning.
When we were on Crufts this year the majority was docked and our dogs are looking different to them, probably a docked one is looking more balanced.
Anyway, at the end of the day we work our terrier heavily and I have never been in a situation were the tail was a problem.
So from my