Taymen was never designed as "Military boat", especially "one-time disposable boat"!
Taymen was produced by military plant, Salyut, that produces jet engines for military planes, because some of such plants in SU were required by state to produce some "civil" production. We know lots of example of such things, some of them were strange (Titanium shovels, or "3-fuse kerosene cooker" by "Irkutsk aircraft plan", which gives nickname to it's main production, Tu-154 passenger aircraft, which also have 3 engines).
Design of Taymen was done by "SU scientific/research labotatory of tourism" ("VNILTE"), which have no any relations with army, for tourism purposes with local Russian specific, optimized for long autonomous trips and expeditions and adopted to up to 2-3 class of whitewater (knees that keeps skin far from crossribs) . That successfully explains Taimen difference from klepper-like predecessors (deuch RZ-85, Poland direct Klepper copy Neptun, Soviet Salyut). Taymen have paddlers situated far from each over, closer to bow and stern, and huge luggage area between them, that allows to take with you even guitar as well as all food and camping eq for weekly (2 week, three week) trip, and very small luggage areas at bow and stern. Also you don't have to repack your luggage, everything may be carried in one big bag (compare with klepper-like boats where you need to distribute it over few smaller bags which you need to put into bow and stern).
Designer of Taymen, Valentin Strogonov is still alive and writes on some Russian forums, his main interest seems to be folding sailing boats for now. Not so far he sold some Taymens of first experimental production with his signature