Gameplay is indeed the central issue. I cannot stress this enough--for players used to the faster speeds in other games, the running speed in this game makes it very boring to go anywhere. It is a significant detterent to new players becoming involved with this game, and was signfiicantly harming my enjoyment even after I had played for many many hours.
I honestly can see no reason not to offer this as an option, and one thst features prominently so that new players will know it is there (ie, not buried in internal settings where new players will get frustated long before they find it).
And while we should work to help the quest item preserve usefulness, one item in one quest should really not bar an optional feature that is critical to the enjoyment of the game for a class of players across all storylines. Slowing down players who would choose to set their speed faster on all storylines so that if they play one they can find an item more fun just can't be the right choice. If it comes down to it, the running speed option could always go to default in that storyline, so that the moccasins retain their special nature there, while players in other storylines could still select the faster speed.
As for realism,
@Grey Roger here is my response when Skyworm made the same point:
The current running speed could indeed make sense, depends on how you coneptualize it:
- Current running speed is a marathon (26 mile) running pace. A bit unrealistic (as Joer notes) to run around town at all, but if you were doing so, it is the right speed. Very unrealistic in combat, when someone is potentially shooting at you or you need to run away.
- Speed of this mod 2x is a sprinting speed. Realistic for combat. More unrealistic if running around town, but that was already unrealistic anyway, and seems a nod to player gameplay choice over realism.
- Some intermediate speed (1.5x or therabout) would be more of a mile+ pace. Not really realistic in either combat or running around town, but a little more fitting for each.
To summarize, current running speeds render the land elements of the game boring and tedious for players used to the much faster speeds in other games. This is the sort of option that experienced players might not care about and go with the default, but is critical to some subset of new players being able to enjoy the game.