An anon contributor helped me with some updates to the frontend at lnproxy.org.
The idea is that we want to foster an eco-system with multiple relays, so now the page shows the relay you're connectiong to more prominently. The default is still set to the realy hosted at lnproxy.org but it's much easier now to pick an alternative relay.
I'd like to eventually move to the cashu-mint-style model of fetching relays from announcements published to nostr, but since the current front end has been up for years with a couple real uses, I don't want to change the trust model until that's ready. It will add some friction to the UI, you'll be forced to pick a relay before wrapping an invoice, but it will be worth it to improve decentralization.