So, while I sympathize with these employers I can understand why my generation has started behaving this way because this behavior was among the first we experienced in the business world. This trend of ghosting employers highlights that no one "side" can dictate the culture of business, we need to live up to the standards we hold others to or we will not be given respect back.
The casualties of this development are businesses that did go through the pains to keep their applicants informed about the process who are now suffering for other businesses' stupid decisions. The business who is experiencing ghosting after having treated applicants the same way, however? Please, acknowledge what you've done and ask what you can do yourself to fix this mess you've contributed to.