It appears he’s not even tried WireGuard. The argument that it does not work for road warriors is a misunderstanding of where static IPs are required (inside the tunnel, not outside).
As one who has tried WireGuard, I’m happy to say it can already replace OpenVPN and IPSec for the 80% case. And not only that, it is in practical experience much easier to install and set up, and much faster to connect and has excellent latency and bandwidth. It is great for road warriors, I’ve been using it for that purpose for six months or so and have never had any problems with it.
Sure, there are some VPN features WG will not implement, for those you’ll have to stick with legacy VPNs like IPSec or OpenVPN.
The rest is just FUD.