Why might a too-wide runway be a problem? In the September 2020 issue of EAA's Sport Aviation, Budd Davisson writes

Runway width becomes a problem for some taildraggers when it gets to be less than 35-40 feet because of the lack of visibility.

Sure.  When you can't see the centerline, it's nice to have some lateral margin of error.
But later in the article (p. 74) in the caption of an overhead photo of a small airplane on a runway seven times wider than its wingspan, he writes

Oddly enough, super-wide runways can cause as many problems as very narrow ones, especially for taildraggers.

What might such problems be?  (Not wandering into the grass.  Even if you can neither look over the nose nor locate the runway's edges, if during takeoff or rollout you drift to one side, wouldn't you still notice the center stripe or the edge or the lights in time to correct?)
Do any NTSB reports mention a too-wide runway as the cause of an incident?
The issue has always been human perception.  Pilots are tasked with trying to make great landings.  One way they do that is with peripheral vision.  If the runway is too wide, they lose that extra clue on when to roundout and flare.  They may flare too early and stall the aircraft too high above the runway.  This perceptual clue is more important for tailwheel pilots than tricycle gear pilots.
From the FAA AIM 8-1-5.


Illusions Leading to Landing Errors.


(a) Various surface features and atmospheric conditions encountered in landing can create illusions of incorrect height above and distance from the runway threshold. Landing errors from these illusions can be prevented by anticipating them during approaches, aerial visual inspection of unfamiliar airports before landing, using electronic glide slope or VASI systems when available, and maintaining optimum proficiency in landing procedures.




(b)Runway width illusion. A narrower‐than‐usual runway can create the illusion that the aircraft is at a higher altitude than it actually is. The pilot who does not recognize this illusion will fly a lower approach, with the risk of striking objects along the approach path or landing short. A wider‐than‐usual runway can have the opposite effect, with the risk of leveling out high and landing hard or overshooting the runway.