Quote Originally Posted by Theodoxus View Post

Ok, yeah, interesting. Granting a free OA that doesn't burn your reaction... that's a pretty progressive stance for a game that takes a very strong 'no additional reactions'. But it still isn't replicating Marking from 4E, which made the Mark have Disad when not attacking the Marker. This is less of a 'look at me' option, and more of a 'I might be very sticky, maybe.'
As someone who's played a fighter in 4e, I agree. How being marked makes it harder to hit those who didn't mark you is key to its feel.

To me, 5e fighter lacking an ability that makes it harder for their enemies strike their allies makes them fail to fulfill their class fantasy, so it's even more disappointing that adding the DMG marking rule doesn't fix that problem.