I've been perusing this board for months, and the rumors just get wilder.
How can you be angry a May 2 opening may be delayed when that date is rumor? The only thing Disney has committed to is a media preview, which is not strictly for SDMT, and happens every spring. There is nothing preventing them from allowing media, and then still not preview or open for weeks. Has it occurred to anyone that construction and testing have been delayed from the start, and they just don't know when they're really going to be ready.
There is no formula for soft opens, there is no way to predict them. They could be planned for days and not happen due to ride/show/cast/Imagineering/safety/building code issues. Soft opens happen to test in a controlled, commitment-free environment, or when a ride is done before it's announced opening date.
No doubt they must be getting close, and I'm just as excited as everyone, but some of these people need to check their facts.