Yes, unless they change it, this is accurate. This is also posted on the Official Disney employee website. I knew this was going to happen because we were there early Feb. and was talking with one of our friends who works at Dinosaur CTX and she told us this spring they were going to be refurbished. We too will miss it on our next trip.
PS: if you look on this board regarding May hours, you will see where I have posted the hours for fantasmic, wishes, spetro and MGM hours as they are posted on the disney employee website already.