Pets are too easy to get, that’s why they’re weaker…
Pets armor require lots of work, that’s why they don’t make them …

These are some of the major answers I’ve seen against balancing pets with thralls.
These are just excuses if you ask me:

  • thralls are not a challenge anymore (not like they ever been).
  • we’re getting tons of skins for pets … armors are not much different.