Weird. I ordered online a few weeks ago (already received my shipment) and did not see any mention of split ordering days.
I think they just started getting overwhelmed as people have now had time to look through their catalog.
I put the six things I want in my cart and will see if they’re still there in the morning. Probably. I order non-mainstream varieties, and these are just my WANTS. I already have my, ‘NEEDS SEEDS’ for next season. ;)