recognizing co-op games

I ran this replay through s2protocol https://lotv.spawningtool.com/35674/download/ with `--initdata` and got the following result (some stuff removed just to get to the important snippet)

```
{
"m_syncLobbyState": {
"m_gameDescription": {
"m_maxRaces": 6,
"m_maxTeams": 4,
"m_hasExtensionMod": false,
"m_maxColors": 16,
"m_isBlizzardMap": true,
"m_gameOptions": {
"m_competitive": false,
"m_practice": false,
"m_lockTeams": true,
"m_amm": true,
"m_battleNet": true,
"m_fog": 0,
"m_noVictoryOrDefeat": false,
"m_heroDuplicatesAllowed": true,
"m_buildCoachEnabled": false,
"m_advancedSharedControl": false,
"m_cooperative": false,
"m_clientDebugFlags": 265,
"m_observers": 0,
"m_teamsTogether": false,
"m_randomRaces": false,
"m_userDifficulty": 1
},
"m_defaultDifficulty": 2,
"m_isCoopMode": false,
"m_mapFileName": "",
"m_defaultAIBuild": 0,
"m_gameType": 0,
"m_hasNonBlizzardExtensionMod": false,
"m_randomValue": 3559572045,
"m_maxObservers": 12,
"m_isRealtimeMode": false,
"m_maxUsers": 2,
"m_modFileSyncChecksum": 2822893348,
"m_mapSizeX": 208,
"m_maxPlayers": 4,
}
}
}
```

Note that although, this game was a coop game, it has both

```
["m_syncLobbyState"]["m_gameDescription"]["m_gameOptions"]["m_cooperative"] === false
["m_syncLobbyState"]["m_gameDescription"]["m_isCoopMode"] === false
```

I'm not sure how those would have been read incorrectly from the replay, which would indicate that it's in the replay file itself. Am I misinterpreting what those field are meant for, or were those incorrectly encoded on the replays?