Most those kids will end up at different schools. Offers tend to fall apart over next 4 years. Why do you think there's always crazy list of decommits in every senior class. That usually means the kids offer was pulled and given to someone else.
Not sure who you've been listening to if you think there is a "crazy list of decommits" each year. There are a few each year and most of those have more to do with coaches coming and going.
What's up, Mr./Mrs. Gloom and Doom???