Making the Barding difficuly lower may be a start, but one person(not all tamers are created equal, some are much better at it then others, and some pets are better then others) again, One Person no matter if its 300+skill or with hide stealth ninja 500+ is commanding One or more monsters that can do things that a Player cannot do.
Such as cast on you well off screen, and cast faster then a player is allowed to do, granted the casting may be random, but a Double Flamestrike or whatever else is in the AI combo 1-2 pets unleashed isnt possible by any Player.
We all have tactics to combat Tamers in PvP, but to try and equate using 300+ skill and making the Tamer an easier target to kill isnt a fair comparison.
Everyone has seen Dragons and Beetles flying across the screen and had them cast on you off screen.(some pets seem to get stuck and never chase any faster then slow motion that goes back to all Tamers and their tactics arnt created equal)
All I can say is I think we are going to see alot more Tamers fighting Tamers to try and balance what EA wont Balance, and with more Pets on the Field , more Non- Tamers are gonna get killed by pets and come here to complain about it or just quit UO because of the Increased Pets, Cheaters trying to survive Pets and ganks and Dismount Ganks with Pets.
Pick up Tame/Lore/Vet, Hide/Stealth/Ninja, Music/Peace, Chivalry or any combo you see fit to Survive.........