precisely: edge clients (like mobile devices or browsers) would only have a single connection to your own backend (not counting any other public relays you choose in the client). furthermore, the same backend would be serving you the client code: so you have a personal, uncensoredable front end that only connects to your own backend, which is a nice bonus and removes dependency on single point of failure clients.
another happy side-effect: content hosting (like images, music, videos) is also solved. the same VM that is providing the Nostr relay would also host static content. so every user is also a content provider, which solves the problem that nostr.build and others are currently struggling with.
not only is this convenient and cost-effective, but it also means an uncensorable content distribution network. with no single choke to squeeze, censors can't put pressure on content hosting. (it also means lots of pirated movies flying around, but let's not go there just yet :)