Probably because you played a rogue and not a warrior or a cleric^^
Rogue can also be very strong with 18 dex and enough constitution and appropriate weapons, but warrior definitely felt like an easier time
I really don't agree.
They have a high AC and can be strong (that's what the class is) but playing them is a chore and means running everywhere after ennemies in most combats if you don't range attack. Disengage is broken and so is the melee fight... And if you don't jump at each turn, playing them is even worse.
I'll be glad to try a nearly full melee party... but I guess it's gonna be so boring...