Even manually typing reddit.com/r/all (or r/All, which was a workaround for a while) in the address bar on iOS Safari redirects you to reddit.com/. Since I'm guessing you're not browsing reddit.com, what client are you using?
Anyways, the end result has been I don't use reddit at all on the phone, so kind of ended up being good for me anyways.
On my phone? Yes, absolutely, impossible to hit the links correctly even if I zoom in. Both old reddit and HN is "Fully functional" on desktop, agree, but far cry from "fully functional" on my arguably tiny iPhone.