Very possible.
I also add this in I just discovered for others reference: I also noticed now that when trying to install adblock again I get that the libncursesw6 is a required dependency which is missing, when searching the forum I found this might be caused by me running apk upgrade once in a while instead of just waiting for a full sysupgrade: https://openwrt.org/meta/infobox/upgrade_packages_warning
Probably need to reflash after all and not run upgrade commands anymore, just do sysupgrade when available. Should not treat OpenWRT like a Debian server or Arch desktop. Live and learn.