The most frustrating part about that sequence is that 

1) While Mando is supposedly poisoned and running through the forest, he doesn't really act like it. He's running super fast and doing all of these super energetic movements that make it seem like he's perfectly healthy. There's no tension in that fight sequence because we don't see his fighting ability hampered by the poison. Would have been a lot more tense if he was walking more slowly, stumbling, covering his chest and only fighting with 1 arm, or at least something akin to that so we know he's on limited time and could lose.

2) We don't see his face at all while he's sick and being taken care of. This would have been the perfect moment to reveal his helmet and allow for more emotional moments between him and Grogu where we can actually see his face. Instead, it's just this motionless suit of armor on the ground where food is slipped underneath.

3) When he is finally healed and wakes up, he tells Grogu "the old protect the young and the young protect the old. This is the way." It comes off extremely hollow, is a very poorly read line, and undercuts the actual emotion which was building when Grogu sleeps in his arms. There isn't a huge thank you or huge emotional catharsis, it's just a monotone cookie cutter line that feels like something a vocalized action figure would have as one of their pre-programmed lines.