Oh easily .. any park you can spend a whole day or more in .. ESPECIALLY if you are a first-time guest.
Each family has their own pace -- I can spend a whole day in DHS (even before TSL) .. where most lately have not.
But I think that of all the parks it has the least amount of attractions ... even if you count the walking trails as an attraction (which probably most don't).
For a lot of the "ride only" people -- the park is a quick day, especially when two of the rides are skippable "kiddie" rides. More ride attractions help give the park more fast pass availability and should (in theory) keep standby lines down as people are distributed among more things. One of the main reasons that Flight of Passage wait times are so high is simply because there is only 5 or 6 other rides to wait in a line for at that park.
The more the other parks can get near the level of attractions that MK has, the better the FP+ system works - no tiering needed!
That's why it shocks me they just suddenly shut down an attraction, but obviously they must have some plans (one would hope) and this isn't just a cost-saving measure. I mean . .if they want to cut costs, shut down the dumb carnival games in Hester and Chester's . .does anyone actually play those?