Honestly this is way beyond your paygrade. You don't get it. I am not going to explain politics 101. This is going to be apparent to you in few years. For now...let get Uhuru elected in 2017.
The precedence very highly suggests the exact same thing is gonna happen to Ruto. JAP is an attempt (so far successful) to deny Ruto his own party before he's dumped pre-2022.
And it's funny you mention Moi mishandling KANU and therefore receiving a thrashing from Kibaki when the other disgruntled clowns jamas (RAO et al) ran away. Uhuru is following the exact same playbook Moi tried with RAO.