Some Russian charters are affected? Oh yes. Largest charter company with 45-strong fleet ranging from 737-800 to 777s few month ago is now 2 airplane operation and defaulted on all leases.
3rd largest scheduled carrier is de-facto bankrupt, many assets arrested and will stop operations any day now.
2nd largest scheduled carrier was saved by Government on a Christmas day by providing huge volume of state guarantees.
If you truly believe business jets are not affected and will continue to stay strong in Russia - you must be born after 2008, as this was last time s@it hit the fan