Let's see.
Josh Holmes and/ or 343 claim that Sprint is in the game because "fans" feel as though Spartans should "feel" like a spartan. You should feel like a tank when running around. You should feel like a super soldier. Etc. Even the zoom in mechanics (which are not very good IMO but not game breaking) they say it has "always been there, it's linked into your helmet" These are the things that 343 claims are good because they fit in with the lore. But one thing 343 has NEVER done, and I mean NEVER, explain WHY these things actually help the game. 343 has never ever explained why sprint actually improves the game experience. Not once. If they actually did so, I would be open to listen. There is a laundry list of the reasons why Sprint absolutely ruins the game, but 0 reasons besides "Spartans are super soldiers, therefore they sprint!"