Don't get me wrong, not saying OS1 was perfect, but I liked it more overall.
Armor is actually the one thing I have mixed opinion on. On one hand, it indeed greatly rewards you focusing 1 target with a singe damage type. On the other hand, optimized characters stunlocking everything forever was bit ridiculous in OS1 and I don't like rng for hit mechanic in general, it's too binary. I don't like the new armor system but I think CC is one of the things OS1 did pretty poorly too.