Yup, that's a downside. The advantage is that it's much simpler and will also work when you're not on your home network.
(1) Install "1Blocker X" -- not free but it's cheap. (2) It has a huge number of rules and protects your Safari pretty damn good. (3) You can disable the existing rules if you so choose. (4) You can add new ones based on URL regexes or CSS rules.
I am still using it actively both on my iPhone and iPad, one of the best investment in apps I ever did.