I think you may have misunderstood, the introduction I saw is "NOTES 1.Each user is limited to 188 units." Then it should mean that a customer can order a maximum of 188 units, not a minimum.
Nope.
I contacted Bitmain, here's their reply:
Dear Customer.
Thank you very much for your interest in our products.
Please refer to the following link for information about Bitcoin Miner T19 Hydro.
https://shop.bitmain.com/product/detail?pid=00020220711185109085o99L6nF90644 Please refer to the following link for information about ANTSPACE HK3.
https://shop.bitmain.com/product/detail?pid=0002021123118285350583K2a0P505EF The current Pre-order MOQ of Bitcoin Miner T19 Hydro is 188 units and we recommend purchasing it together with ANTSPACE HK3.
Please fill out the bulk order form if you have a related need.
https://www.bitmain.com/bulkOrder Please fill in the cell phone number for registering WhatsApp or Telegram.
We will notify the sales manager to contact you as soon as possible to discuss the matter, the general waiting time is about one week.
Thank you for your cooperation.
Best regards,
Nick
BITMAIN