Last I heard, the manufacturer had their employees ride, so folks have ridding the coaster. I assume the next step would be Sea World Employees, but we are in the mist of Spring Break. I've also heard all of the parks are having a tough time attracting workers which might make opening a new attraction difficult.
I will say though that I thought the scrims around the ride said Spring when they went up but now they say soon -- but, I might have seen the spring part elsewhere.
Now, if the install crew discovered an issue, I would expect them to delay (but I would think they would block the entrance back up again if it were not opening this year.