Regarding the first part of your article, the poor leadership and planning ability of Kiev forces has been noted many times.
Saur-Mogila being but one example, after the fight, UK forces “moved on”, leaving a Right-Sector Battalion behind to “Secure it”, and terrorize the locals.
Unfortunately, as has been proven many times, these Right-Sector/Kolomoisky militias are very good at terrorizing unarmed civilians, but are completely undisciplined in a real fight. That was the fight in which the rebels claimed to have surrounded and killed over 100 of them. It was “Donbas-1”, If I remember right.
The rebels haven’t been dislodged since, especially with the locals knowing the underground bunker network the Soviets installed under the memorial area.
Yes. Ukraine is continuing to weed out Putin saboteurs.