I lucky did my training(practical) with an flightshcool who is also commercial operator, and got the change to do some work with them both flying but mostly as ground crew and it was the best shcool ever, but thats not the case in theory terms.
Since there is no JAA ATPL helicopter course ongoing you have to go on a fixed wing course and then convert over to rotary by taking one single bridge exam, wich is very exciting to do after you have done 14 of them mostly about trans Alantic plannig at +30000feet,supersonic flying,jetstreams,pressurisation
and lots of other useful stuff to becoming a helicopter pilot.
So it not like they are not teaching it, just not the things you need to know but everything else.
Like I have said before the JAA syllabus is 20% NEEDTOKNOW, 40% NICETOKNOW and 40%TOTALBUL****T
But there are guys like Shawn Coyle that wrote this brilliant book so we the beginners could get some knowledge on helicopters in theory. Thanks Shawn.