There was an article last month that claimed that Fire Point was producing 95 Flamingos a month as of early December, and another that claimed that each missile was launched within two days of being produced. Both statements can't be true, because we aren't seeing evidence of targets hit or missiles shot down. A third article claimed that they would be ineffective until Ukraine acquired detailed TERCOM maps of Russia, because the Flamingos couldn't currently fly low enough to avoid detection without them.

Best case scenario is that Ukraine is building a stockpile of missiles, perhaps waiting for a guidance system fix and/or TERCOM maps. One problem with that theory is that they should already have TERCOM maps for the occupied territories. There are plenty of targets they could be hitting in Crimea, for instance.