This is a bit disappointing. The game should out of sync if anyone attempts to modify resources count (including military population count) online. Regarding the issue of map full exploration, it is indeed a bit difficult topic to fix as for how the game engine works, but if anyone can spam any unit, that is a huge problem.
Just saw the cast 
The guy was so bad, he couldn’t win with map hack alone, so he had to spawn 200 minutemen 
Well if that was the only hack after that spawn, vils would have finished the rest of the minutemen and loseing most vils with a few kiteing skims would take care of the rest. But i understand being demoralized and dont know if hes just going to hack again.
It seems like he exploited/modified an ability ,so maybe 1 time use for each tc?
Thankfully out right hackers/exploiters(map hacking is sometimes hard to detect unless you have the recorded games of them giveing commands with out los of whats there) are rare because of the niche of the game.
Given he did it 1 time, there is no reason to assume he can’t do it again, especially as he can build another TC to call for minuteman.
I can think of two solutions for dealing with cheaters.
PS: Can you imagine two cheaters playing competitively against each other, it would be cathartic.
Might as well have cheats turned on to see how the game plays out 
are the dev even try to ban these hackers to begin with? LOL
ppl promote cheat engine in game lobby publicly
if the sellers arent banned, i cant imagine the cheaters are banned as much as needed.
well, that just another signal the game is dead.