Pointing out errors is criticizing (which I don't mind at all), but unless Lokolus does an update on Earth 1862 AD I won't be making any changes. The main reason for this is, I'm not too happy about how the scenario plays out, but to change that I'd have to do a major overhaul, which might make the original irrecognizable.* Which is why I suggested pointing your finds out to Lokolus, who is the original creator.
* A secondary reason is I've got 2-3 scenarios planned, 2 updates I'm backlogged on plus MOO2Civ. So I haven't got the time right now.
PS: Actually you can easily edit the changes you propose by starting up the scenario, choosing the first civ in the list, opening Worldbuilder when your turn comes up and saving all of the changes you make.