It's interesting, maybe some other players have ideas. In "normal" Chinese chess there exists a similar problem that a player can only win with specific combinations of pieces, if they dont memorise the combinations it's impossible to efficiently conduct the middlegame. Due to this inherrent drawishness and the facility to be able to agree draws, it seems excessive to also allow one side to force a draw in an otherwise lost position. Regarding the Tromyr-Redsales game mentioned earlier, (I wrote "black" when I meant "white"), of course one cant criticise Redsales for playing within the rules but I would certainly like to see this rule given a serious review.
A further point concerning shogi, in shogi the players can not agree a draw. A threefold repetition (same player to move, same position on the board and same pieces in hand) voluntarily undertaken by both sides ie not with continuous checks by one side, is considered a 'no contest' and the game is replayed with reversed colours. The only valid draws are jishogi, though effectively, at the professional level, these too amount to no contest.