For me it loads fine with uBlock, but they have started to implement some basic VPN-blocking apparently (or enabled whatever their CDN provider talked them into or whatever). A simple reconnect seems to do the trick with ProtonVPN however.
No, they are literally not. Blocking VPN users is literally the low effort thing to do because the rate of problematic attacks and similar high effort issues coming from those IPs is much higher than the few legitimate users using VPNs are worth.