Ya, it still wouldn’t help me based on the timetable, but how hard is it to hire another team of contract engineers for a year term once they knew they were behind? They should have been able to open these at the same time having two teams work seamlessly together... unless this isn’t the whole story...
Possibly the ride requires construction modifications inside and they’re still able to roll those into the WDW buildout and have engineers onsite to then quickly get it operational and will need to wait anyway at
Disneyland for structure or vehicle modifications to take place before engineers could get in there and apply software or sensor fixes...
Either way a company of this size and ability should have seen issues like this way back in the spring and doubled down on their development efforts to at least hit the original opening dates (or very close to ~30 day delay)