Obote was already a boring pot bellied matumbo general who was no match to hungry scorch earthers like Museveni.
Kenya are generally edgy of violence given the Mau Mau state of emergency records as shown by hysterical global reaction on the small time 2007 PEV scare or any 'hate speech' 'incitement'.
Check your history better.
The man to beat and the power behind Obote was General Oyite Ojok. There was no way Museveni could beta Ojok. The rebels would run whenever they realized the commander of the unit they will fight is Ojok.
He knew Museveni and had trained him in Tanzania and commanded him.
The day he died is the day Obote's hold on power weakened. Indeed it is the succession of Ojok that unleashed the coup when senior commanders thought they had been bypassed for a junior - Smith Opon Ocak - to take over. The Okello's then launched a coup that drove out Obote. There were divisions between Lango and Acholi giving Museveni an opening
On the other issue, I find it funny really. This is what was said about Ivory Coast before it plunged in to war. The cause: Electoral Games by incumbents.
A little earlier we had similar fallouts in Sierra leone & Liberia where incumbents thought they had a god given right to rule.