I can't speak from a conveyancing POV, but I deal with solicitors a lot in a commercial capacity with contracts, and I honestly believe they are a hindrance to efficient commerce.
It seems to me they relish getting into a pis.s.ing contest and object to things that have no meaningful affect on the intention of the contract, which in turns results in an objection to by the other solicitor, and all this ego-boosting to-ing and fro-ing does is to increase their billable hours.
Seems to me this is not dissimilar to what you are experiencing.
I have yet to meet a solicitor who was ever ever ever wrong!