This https://forum-en.gw2archive.eu/forum/professions/ranger/Busting-the-Myth-of-Useless-Pets is good write-up about what I tried to summarize shortly.
Showing Posts For Haukka.5091:
I think its good, makes you have to use other pets and utilize their (and your own) abilities to manage. If I could get a mob (or mobs) stick with my bear all the time, there would be little use for any other pets. Now I need to select the pet (and weapons/utilities) different for more intelligent mobs.
However I agree that sometimes there doesn’t seem to be any real “idea” behind which mobs do that and which dont. Sometimes a supposedly intelligent enemy doesn’t ignore the pet, but then a simple animal does.
Well, i’ve been trying for sometime now. Cannot place a custom offer either…
Same thing here…