Former infantry here - One of the things that was drilled into my head, obstacles should always be covered by fire to deter these sorts of things. If you can't cover it by fire, then maybe it's not worth putting on obstacle on.
Typically, you use obstacles in engagement area development as part of a defense. An obstacle that's not observed isn't valuable because it's easy to circumvent. You can probably use a bulldozer (guessing, I was light infantry, not a tanker) to breach the dragon's teeth relatively quickly so the obstacle doesn't have the intended effect. However, it's much harder to breach the dragon's teeth if someone is shooting at you. Now you need an armored bulldozer, or enough suppressing fire to cover the breach.
https://en.wikipedia.org/wiki/Python_Minefield_Breaching_Sys...
https://twitter.com/UAWeapons/status/1590087764070268928
Video description: Drone video of a Russian armored column advancing when a mine-clearing vehicle gets hit, suffers earth shattering kaboom when the mine-clearing charge goes up.
However, on top of the shame for what Russians are doing in Ukraine, the shame for how they are doing it is almost as disgracing.
> One of the best methods of overcoming these obstacles was by bulldozing soil over them.
I also thought about it before that point. But
> However, in many situations this was much easier said than done while under fire.
I didn't consider this. I'm only a keyboard tactician.
I'm not sure what the soldiers in the tank expected. Maybe they missed the "don't drive over obvious mines" day in tank school.
Drivers in cars in best conditions fail to notice things, so it is not all that surprising that Russian army soldier would not notice things.
Gotta show the grandpa the pretty picture. Grandpa loves war movies.