Mountain Eagle actually didn't understand Sofia well and found it hard to empathize with her plight, but that didn't prevent him from offering her help!
She wanted to take on MI6, then so be it. At this juncture, under the aura of Russia, even if someone were actually killed, the official England wouldn't dare utter a word of rubbish.
Arranging spies to interfere with another country's internal affairs through kidnapping would backfire once exposed.
As long as it wasn't officially acknowledged, MI6 would have to swallow its teeth even if someone died.
Just like when Mountain Eagle had suppressed MI6's agents in Thailand, if you hadn't colluded with the local officials, all your actions were illegal, and if you died, you just died!
During this period, Mountain Eagle had essentially become numb to those so-called intelligence organizations...