It also means, that the functionality may not be there yet. For example, Strongswan, OpenVPN etc have already solved assignment of client IPs, with Wireguard you have to allocate them by hand in the config (good luck managing several hundreds of them). Strongswan, OpenVPN, etc have no problem operating the server with dynamic IP (you just create DNS record for the end point and update it, whenever the IP changes), with Wireguard you must define the server IP by hand and when it changes, you must change the config and reload it.
Stuff like these is also a reason, why Strongswan, OpenVPN, etc have bigger LOC. I'm not saying that Wireguard is something bad, it just must go through a growing period, where it will gain additional LOC.
