This might be controversial to some people. But I have noticed people who main warriors came from different backgrounds, some were more adapt of being a arena pvper, some were into large group pvp, some were from the school of fury main DPS, some were arms DPS, some were tank mains. Tbh I found a large amount of variation in terms of how people play the class. Even people who used to tank in vanilla, tbc and wotlk has slightly different playstyles due to itemization and talent differences. Just develop your own playstyle as long as it makes sense because the amount of interactions among warrior stances and spells require specific scenario, like you could only disarm while in def stance, you could only counter instant fear and incap while sitting in berserker stance or overpower can only be used in battle stances. There is an optimal way to play as warrior but the specific scenario requires you to adapt to certain situations, I still make a few misplays myself even having roughly 5yrs classic warrior experience.
It all come down to your personal preference are you more into pve DPS, or pve tank or pvper.
I do believe this game offers low skill floor with steep learning curve for each classes. Which makes it retain it playerbase in the long run.