Yeah, that's my other point, Russia will never explain, they'll just try to gaslight the entire world at best. Or at worst just say "Yeah? And what are you gonna do about it?" and the answer will be a resounding "Oh. Nothing, I guess."
I think any lifelines for assistance that Putin would’ve been hoping for with Azerbaijan, would rapidly disappear, if he attempted that, whether accident or intentional by a Russian unit. Putin would have a lot of tapdancing to do, and it would be in his best interest to do so if only to try and preserve a diplomatic relation that he very much needs. That’s the logical take, which may or may not actually pan out in truth. Again, speculating that this was Russia. Hate to do that as that is unknown as of yet, in terms of only dealing with known facts.