Are overnight buses really that bad in Bolivia?

I’m planning to take a night bus from Uyuni to Sucre next week but can’t find any information about the bus company that operates this route (6 de Octubre). However, I’ve been reading horror stories about overnight buses on the internet—drunk drivers, people sleeping on the ground due to overbooking, homeless people or strangers being let on board, and numerous deadly accidents on mountain roads (including one just yesterday).

I’ve only read good things about Todo Turismo, but unfortunately, they don’t run this route.

I’m feeling pretty anxious now and even considering skipping Sucre altogether and flying directly to La Paz.

Any tips or recommendations? Does anyone have direct experience with 6 de Octubre in particular?

Update: eventually I decided to take a bus to Potosi and a rapidito from Potosi to Sucre. The bus was 11 de Julio, it was a bit smaller than usual and pretty basic, but seats were comfortable and the driver drove safely. The most dangerous thing were llamas crossing the road! So overall a good experience! The rapidito on the other hand drove like a maniac and while I made it safely I do wish I had taken the bus instead.