I've cruised on suites on NCL several times and I've never had the escort thing work well. The closest I've gotten was our last cruise when we were able to sail in a Garden Villa - and even then on debarkation day the port escort insisted I take an elevator with my rollator even though both my son and I told them that we were perfectly fine to go down the escalator and we do that ALL the time! (I have one that is light and folds side to side).
I'm sorry it was a disappointment. I now just expect this will not be in the least special and look forward to being in my suite and doing the cruise! I hope you were able to enjoy the actual cruise!