There is probably nothing to this report, but here are a few points:
1) I don't know if he's saying that the team buys the jerseys from Majestic's website and pays $100 for them. But the team *would* get the jerseys directly from Majestic for the wholesale price, which would then reflect the stock which was available for fans to buy.
2) Majestic is now owned by Fanatics, and it was recently announced that Majestic will keep producing the on-field jerseys next year, which will be Nike branded. So it's not like Majestic is going to stop making White Sox jerseys a year in advance of the Nike deal because they don't want all that dead stock. The replicas are likely to be the same this year as next, with the only difference being the manufacturer logo. The replicas have heat-pressed Majestic logos, so they would probably just leave those off the extra stock and press the swoosh on next year.
3) While there's probably no fan rush of jersey purchases based on the Yonder trade, I don't think the Sox buying up a bunch of jerseys is a smoking gun here. We know from many reports and our insiders that the Sox are confident they will land one of the two whales. They could have just bought the jerseys because they think they'll end up with one of them, and not because they are closing in on a deal with Machado.