My take of the response (and this is only my interpretation...all should make their own)...
WWI is a computer game and the rules are based on an original board game. In the original board game, aces appeared randomly and the computer game kept that mechanism. One reason the mechanism was selected was because in history, events occur randomly and not in some pre-ordained order (now we're getting philosophical) and the game has those aces again occur randomly. It is not trying to recreate the war as it occurred but recreate the flavor of the war.
Not sure about the rest of you, but other games I play and love, such as GMT's For the People, do not force things to happen exactly as they did in the event they are simulating. Each game designer chooses elements they consider to be the historical boundaries (some with tighter boundaries than others) and then each allows play (both from players and randomness) to create the game flow. If they simply followed history, why have players? Instead, you would just sit back and watch the computer show you what really happened. To be a game, some elements need to not be forced to follow history and, in each game, the game designer has to set these boundaries.
In the case of WWI, the game designer did not consider when an ace appeared as a boundry but, instead, simply their ability to appear.
That's at least my interpretation, but obviously all of you can decide for yourself if the original post accurately reflects the actual designer comments and intentions or whether the original thread post was filled with emotion and perhaps some (or even a lot of) distortion.
You opinion is worth of respect: No doubt!
Anyway it was AGEod to state the "uniqualled historically-flavoured detail and design" of the game they sold.
They also added: "Over 200 historical leaders with unique abilities".
It's printed on the back of the game box we bought!
It's stated on game features descritpion at sites solding the game!
They had change to go after their statements adding more leaders (Aces), and reducing the spawning date according to history!
That has been done with other AGEod games: Wia, AACW, NCP,......
No doubt errors can occur, as occurred in the games I mentioned: most such errors have been then fixed.
With WWI we had a different trouble: the game has been released in a hurry to rise money, but without respect for buyers: it's uncomplete, bugged, instable, pretentious when stating features but disappointing in the facts.