WireGuard is actually pretty awful from an IT security org perspective. There are no logs when someone connects or is trying to connect, so auditing or troubleshooting becomes extremely difficult short of packet captures. Additionally, there is no concept of two step auth, so if your key is compromised, anyone can connect without anyone knowing about the compromise.
If security companies adopt WireGuard, expect things like PulseSecure to remain as a wrapper around WireGuard. They'll at least standardize on a performant and verifiable VPN solution.