Scrolling back though their twitter profile form the current promo I see a few more prices that appear suspicious in retrospect: 9.88, 14.98 and 18.88 for example.

The article mentions a point of uncertainty:

As Cotlar noted, it’s not clear whether Lindell is in on the reference. In a video announcing the discount, Lindell is seen holding up two pillows and announcing the new discounted price as $14.98, even though both the official MyPillow website lists it as $14.88 with the promo code.

“I want to tell you about a current box store that put in an order — a big order — for our famous MyPillows, we made them all and got ready to ship them and they cancelled at the last minute,” Lindell said in the video, after lamenting that his company had been “cancelled” by “attacks that just keep coming.”

If you actually check my 14.98 link above there and follow through to the website both promo sites, the old https://www.mypillow.com/r251 from Sept 10 and now https://www.mypillow.com/r277 link to the same video hosted on vimeo https://vimeo.com/1008571598 title “video-output-2A900B79-65FC-44FB-8C21-E348491689FB” uploaded Sept 11, so they made the video with 14.98 first, and now just reused it even though they updated the sales price to 14.88