It irks me somewhat to see a proliferation of standards around VPNs, as I feel that it makes life harder for end users in the long run. You end up needing many different clients installed to connect to different places, and can end up with conflicts between them.
I'd much rather see them putting effort into providing better competing interoperable implementations of the established IETF standards like L2TP/IPSec, GRE/IPSec, PPTP. I feel that the wheel is being reinvented too many times at the protocol level, and the protocol effort would be better spent contributing to one of the established standards. If any of the existing IETF standards are lacking in any way, it's generally not that hard to enhance, extend, or modernise them. If they are a pig to configure on any given platform, that's extremely solvable without creating an entire new non-interoperable non-standard.