Lol

Did you just add ‘blindly passing traffic’ to your statement? Did you read my comment about can help?

Move on, joker.

The selfhosted guys are correct with that. Of course its not a magic pill, but it can help to minimize the attack surface immensely with little effort.

Edit: while open ports can easily be enumerated, a reverse proxy often requires knowledge of the right server name. In tls1.3 those are not transferred in clear. Depending on your thread scenario you might want to consider doh/dot etc.

Reverse proxies can require client certs, which lift the security benefit to something like a vpn. Even basic auth adds a high threshold to attackers and is simple even for random users to work with. All this is functionality many services don’t offer natively - as they assume a reverse proxy anyway I guess.