malabo,
It seems rather pointless to comment now that the offending post has been removed. I did not comment originally because I knew others would!
Clearly, anyone who thinks that a back-up procedure should be used offshore does not understand the helideck environment. It is because there is no deterministic procedure (CAT A) that can address all of the environmental conditions (of which cross wind limits is one) that PC1 is not possible offshore.
I can only suggest that, in order to understand the issues, 'outhouse' re-reads the PC2e thread.
I am not aware of any regulatory push towards PC1 offshore although it is clear from comments (that have been made) that the issues are not well understood by some NAAs (even in Europe).
Jim