No i personally didnt, but i didnt feel like i needed an iphone either and then apple released it. People dont always know 100% of what they want until they have a taste of it. And just because i didn't know i wanted an iphone then, doesnt make smart phones a bad decision now. Thats evolution.
Halo not having a sprint before 4 doesn't make it a bad decision now. When halo was out then, practically everything played like that. No shooters put sprint buttons on top of the base movement then. And im old enough to remember cause i was a Live beta tester. It just wasnt done. Then someone did it and things changed. The formula in 5 is better than any Halo game before it. Only thing H2 did better was maps. Otherwise 5 is superior in practically every way gameplay wise.
To stick to how halo played in the passed doesnt guarantee any success now. Halo was literally by itself on console back then and yeah, it was number one. No shit. And what was its competition back then? There practically wasn't any. Splinter cell? rainbow six3? It wasnt until some actually good competition came out that Halo started to dwindle.
Halo fell because good competition actually came out and it wasnt alone anymore. And where most people who owned an xbox played halo then, now have 10-15 really good MP games to choose from today. Thats why halos population fell.
Halo was alone then, now it isnt. To put all of the blame on a sprint feature or its old gameplay that finally evolved is absolutely retarded.
The iphone comparison isn't, in my pow ofc, a good one. If you want to translate that to Halo and shooter mechanics in general, Halo is the iphone.
Smartphone were already there before iphone, but Apple find the appropriate formula to make it work like hell and built solid foundation for the market. It has inspired Google and other to add new thing, but gives a perfect, yet simple, formula.
Halo is the IPhone, where Android could be, idk, Call Of Duty. It used elements from the IPhone and added things on top of it, but still, Apple found is way with the iPhone and iOS and continue on this path, while Google and Android took inspiration and continued on another path.
I'm not saying Halo will be as successful as it was if you take out the sprint. It sure won't, and now Halo added Sprint, I think it will never be removed, mostly because Halo is now associated with Sprint.
But I do think Halo add a formula that was unique, and if it didn't altered its formula, Halo could still have its unique style and be that shooter for that category of players & people, like OverWatch has its formula, CoD do, Titanfall do, etc...
And Halo could still differentiate itself from the competition if it would came back to its proper formula.
Look at DOOM. No Sprint, basic formula with added jumping system, and look how successful it was.
There is still some place in this modern market for old-game based shooters. And Halo could be the top of its own category.