It used to be (LONNNGGG ago) that if a major show element like a main animatronic went down, they would, indeed, close the ride and fix the problem ASAP. It instantly became a top priority. Because they didn’t want guests to experience a crap, incomplete version of the adventure. Because they were proud of Walt’s park, and the concept of Good Show was everything.
They used to have night crews whose sole purpose was to walk through the big AA attractions and make sure every figure was show-ready for the next day, taking the time to comb wigs and sew repairs on AA costumes. Disney News magazine did a big article on them when I was a boomerling.
That‘s the version of DL I grew up with—ticket books, Big Bands and all.