I find the "problem" is that there is a subset of players who still use sprint as if we were still in heavensward. When a skill like sprint or even cleric stance is adjusted, the player must adjust their playstyle as well. Sprint is no longer a catch-up button for healers, it's a keep-up button.

@OP
There is little reason for a healer to fall behind. you are faced towards the tank and can see him start to move. You can see his character model sprint, the sprint icon in the party window, and probably have him targeted showing another visible icon for sprinting... You missed all of these, likely being fixated on your chat window... Then blame the entire situation on the tank for not taking the initiative to look backwards? That's not right lol.