I'm just wondering if its another trial of R/T phraseology. For example when approving start delivery now say 'hold position' and do not mention the word push - this is due to several a/c pushing without clearance.
Pointing no fingers, I just wonder if this iniative comes from confusion I have heard about the initial stop or blocked altitiude on the SID.
Over the last couple of months I have heard a number of carriers when either checking in with London after departure say 'xxxx ft climbing 6000' - because ultimately the SID finishes there. As we all know however the first block is 4000 on a LAM/CLN/DVR. A couple of crews I have heard too querying with delivery about where they should stop climbing (and good on them too!)
All this makes me think things could be getting lost in translation (not literally!). We use Aerad charts which are very clear - are Jeppesons also??