Yeah with that first group you get might/retrib aura/thorns/motw/blood pact/fire shield buff wise on your tank which sounds fantastic for maintaining aggro. You also have the pally healing, balance druid helping as needed along with soulstone and Druid rez. It’s hard to base it on that vid as he’s naxx gear with TF but I get the jist of what he’s going for. That’s my conundrum with comparing 4 wars or 3 mages to that first group. Yes, you lose buffs and utility but you gain so much raw damage in place of it.