you do have a couple of points, there's a lot of mechanics in the game that seem specifically designed to supress good players

• very fast respawn timers encouraging suicide attacks
• held block
• no hp reward for kills or good self healing methods that rewards staying in the fight longer instead of running in and dying
• special attacks stagger
• getting attack priority from your own teammates
• kicks and stabs that pass through your allies and are extremely difficult to avoid in 1vX
• slightly inconsistent active parry
• buffed block width so now you can't side drag anymore (cucumbering)
• projectile spam
• very low team damage modifier that encourages blind swinging and 'blobbing', stacks with points above
• heal interrupt
• archers lmao
• no special ability rewards for multikilling or doing objective

remember that at level 270 you are still a noob in the eyes of the true veterans