NAT has more benefits - I don't want anyone to know how many devices I have at home, I don't want anyone to know which one I'm using to access their website, I don't want anyone to try guess the OS and version of my devices, etc. And now I'm scared to have a simple DLNA media server because I can't just install WireGuard on the TV. I'm probably going to buy a router and make my own NAT soon (don't have access into the ISP modem).
I felt better when the whole municipality had a single IP address. A lot of bullshit ads - means the targeting wasn't working. Now they're way too good.
And yes, incompetent ISPs are the norm.