I'm not too sure either, but it's a possibility!
The ASD is a brand new product that comes in 6 different versions so I see why there would be supply constraint at the moment. The Pro XDR is three years old and only has two versions so it should be easy for Apple to keep stock of those. Just as the iMac 24" and the Mac Mini are currently delivered within a couple of days.
The Pro Stand has the same delivery estimate as the Pro Display here. So maybe Apple just happened to have some left in stock where you are, who knows.
The ASD is a brand new product that comes in 6 different versions so I see why there would be supply constraint at the moment. The Pro XDR is three years old and only has two versions so it should be easy for Apple to keep stock of those. Just as the iMac 24" and the Mac Mini are currently delivered within a couple of days.
The Pro Stand has the same delivery estimate as the Pro Display here. So maybe Apple just happened to have some left in stock where you are, who knows.