Everything that's being done is in full consultation and with guidance from the manufacturer. The risk aversion of both Village and Mack is almost unrivalled in this industry, so it's crazy to think that anyone is making this up as they go along or that no one thought of seemingly simple ideas such as disassembling the train.
Yeah, it's pretty ridiculous it's taking this long, but everything so far suggests that this is a really tricky problem to solve. What's worked for other rides and manufacturers obviously won't work here.
They wouldn't have left it fixed halfway up the non-inverting loop after the weekend's efforts. Whether it was always intended as a dry run, or they encountered issues along the way, they're not going to walk away from cranes loaded with several tonnes of roller coaster train for any significant amount of time.
However unlikely this situation is, this might well have been a problem waiting to happen. The non-inverting loop is the slowest moment of the entire ride (45km/hr at its highest point), and the hill preceding it is shorter in height (38.2m vs 39.3m), which effectively means that if it loses too much speed between the top of the lift hill and the top of the loop, then it's going to valley in this spot. If the preceding hill were taller and/or the loop shorter, then each high point would effectively reset its potential energy and ability to complete the course. (Stats from here)