That is all part of the mind games they play. They make you reapply and interview so they have the power. Then they offer you the position so thye they hyoe you up about how great you are so yuor “drink” the kool aid. They need to break you down they they can appear to be the ones to bring you up!
The author of this post cited just one example of their mind games with people reapplying for work. Unfortunately, there are many more. And too many. The thing is, they want to have complete control over us. Terrible.