I got some monologue topics like this one: Still struggling with MSS/MTU IKEv2 but to me it be more a topic like a notice or if Mikrotik it pleases, be in the Wiki. These IKEv2 connections to an VPN provider should be easy and ‘fool prove’ and be easy to activate. It has to be transparent to user and all the work should be done in the background as it all like magic…good magic like it is as for me. 
The NordVPN case of them throwing out methods of connecting urged Mikrotik to keep up with them and we got a solution that works and was expanded on request of the users with connection-marking. We have now at least IKEv2 to VPN providers which was a big improvement in the pre-RouterOS7 time-frame.