It is not the case in Russia. By some reason Fly Smart awards are available here via booking offline, namely in the LH office, on just the same terms that work online.
Therefore from your statement 'there are no restrictions when it comes to routing' I infer that the only question to be resolved here is whether, according to general terms on award routing, I can redeem my miles as a FS award for single or double OJ flights if outbound and/or inbound destination belong to different award zones and, if I can, does the higher award apply? (and if it does, as is the case with most airlines loyalty programs, I would describe this rule as unwise and unfair and refer to LED-AGP-CMN-LED for 35, 000 as a FS award: a vivid example).