This is probably a good example of why Qantas has chosen to avoid flying over Russian airspace.
There were 411 passengers on Sunday night's QF2. Arranging visas for all of them (plus the crew, I guess) is no simple task. But imagine if they'd had to divert to somewhere in Russia under the current circumstances. (And just imagine if they did have to divert to Russia, then found that the plane was unserviceable and they needed a new part/s to continue...)
I wonder if Tbilisi was considered?
An extra 20 minutes of flying (or so), but Georgia has visa-free entry for Australians.
Obviously I don't know what the condition of the sick passenger was like, and whether those extra minutes would have been critical.