I'm complaining about the time limit to send your turn in in multiplayer. I'm afraid I never played single player Frozen Synapse.
Laser Squad Nemesis (multiplayer, that game was never seriously single player) was so good that when I saw Frozen Synapse copied the simultaneous orders mechanic I jumped straight into the multiplayer and never looked back.
However instead of having 90 day games like in LSN you had like... 10 minutes per match? Felt too much like Starcraft.
Plus you could spend a day setting up your turn in a rated game against a good opponent, so who cared how the turns arrived.
Frozen Synapse decided to go with a time limit for turns... same mistake as xcom 2.