Shytorque, Riverboat + Jumbodriver
The unfortunate fact is that there is a growing number of controlled airspace infringements.
"Remain outside controlled airspace" is not aimed at the majority of GA pilots who know what they are doing, where they are and their responsibilities regarding avoiding CAS. It is a phrase aimed at the lowest common denominator. Ie the few idiots that do infringe.
The problem ATC have is that we don't know if you are ultra proffessional or a numpty when you call, therefore you get the stock numpty phrase. It may be irritating but bear with us it is said for a good reason. If it helps to avoid one potential airprox a year then its worth it.