Goodwear in particular has been having trouble fullfilling their orders, the wait time can be very long. If they were fulffilling their orders, I have no doubt we would see more GWs then Aeros.
Johnson leathers is cheaper than Aero and arguably better, yet we don't see such a big numbers of them.
Aero is the largest producer discussed here apart from Schott, so it not so surprising to see them dominating in the numbers.
Based upon the response in this thread, it would take a LOT of GW sales for them to surpass Aero. In today's Pandemic economy, I find it hard to believe there are that many people who could afford a $1500 jacket without overextending themselves. Just buying a $1000 Aero is likely a stretch for an average Joe living within their means.