I disagree. I think that offensive bury is still best against specific targets. When you're offensively burying, you're generally spending resources that could be spent attacking instead attempting to bury, so generally not causing damage.
Also, copying actions, while it can be valuable, is more resource-intensive than doing the action with the model that actually possesses it.
This all speaks to it being inefficient.
I find it better to either surgically try to remove problem models, knowing you have the cards to do it (or make them fight hard to stop you) or use Glimpse like a weaker version of Horror duels to drain their hand. Having an expensive, small crew like the above probably means you're not forcing a high duel count, so would be on your back foot with your chosen strategy.