When the Space Forces announced the end of Tsyklon launches from Plesetsk, the alleged reason was that these NDMH-fueled launchers are harmful for enviroment. The harm part is certainly true, but it wasn't NDMH that tipped the scale - the Space Forces has no problems with keeping the equally "dirty" Kosmos-3M in operation. Or with planning commercial Rockot launches from Plesetsk - a team from Globalstar came to Plesetsk last week to look at the prospective launch site.
When commercial interests are at stake, nobody mentions environment (military programs could also take a back seat). The real problem with Tsyklon was that Russia would have to buy the rocket from Ukraine, which is not good for the profit margin.