Linera left with Morales. The President of the House apparently left to Argentina. but Salvatierra didn't flee? Resigned of her own accord.
And, again: Anez called prompt elections and peacefully handed power back to MAS less than a year later. She had every opportunity to avoid that: the election took place during the start of the COVID pandemic.
Anez is not good. I don't dispute MAS appears to be the better steward of Bolivia. But Morales had plenty of time to set up a constitutional succession and build a long-term movement (note that Morales and Arce hate each other, and there are rumors that the coup has more to do with that relationship than anything else). Instead, he tried to secure an unprecedented 4th term, after his unprecedented 3rd term, after his unprecedented 2nd term. Is it any wonder that there was chaos in 2019? If Morales had just annointed a successor, MAS would have won in a walk.