You can't say there "isn't any benefit" in using Tor without saying what you're comparing against.
OP had a problem, and solved it using Tor. Suggesting there isn't any benefit in using Tor, without offering an alternative, is to suggest that you just shouldn't solve the problem.
Of course there's a benefit in using Tor: it gets you through NAT for free!
It also gets you end-to-end encryption for free.
I am not saying you shouldn't solve the problem. I am saying that Tor is probably not the best tool available for the task if you don't specifically care about anonymity and there are more efficient tools available.
Zerotier is one example, Cloudflare Argo is another, tinc is another, Yggdrasil is another, Tailscale is another. Some VPN providers (like Mullvad) will happily forward ports to you from their VPN servers. As the author linked to at the very beginning of their post, you could even set up something similar by hand with a VPS (free-tier would suffice) and off-the-shelf VPN software like Wireguard.
OP had a problem, and solved it using Tor. Suggesting there isn't any benefit in using Tor, without offering an alternative, is to suggest that you just shouldn't solve the problem.
Of course there's a benefit in using Tor: it gets you through NAT for free! It also gets you end-to-end encryption for free.