No... I liked him very much. Acting like a real untrained dog. For some kind of dogs it's common to push. My Labrador pedigree pushes my other dog to go where I asked it to go. Sometimes she pushes me too. It's in her blood acting like that. That's why they are used for keeping the sheeps together. Bethesda has done a good job with the dogs. They act like they were real.
Yes I still have Meeko with me.
He's not untrained though, He is deadra who takes the form of a dog. So he should behave best of them all. None of the dogs are untrained. Meeko had a owner, I presume Vigilance is trained, never got him, only the dogs you meet, which I have never done, so far, might be untrained.
And Meeko is nowere near as bad as Barbas.
It's just bad dog and follower ai. Especially bad for Barbas.
Dogmeat in Fallout 3 and Rex in Fallout New Vegas have bad ai too.
Dogmeat is worse. He stands across doors and pushes you. Rex is better, but he still blocks doors and and narrow passages and walkways sometimes.
At least they're not annoying.
After I first did the quest and I got the helmet, I got images of Clavicus Vile having to kick Barbas out of doorways and being pushed into things, and thought, he is going to have barely any peace, lol.