Couple problems with that info.
Investors set their price to buy either on the bid or to slap the ask. They set their price to buy and they set their price to sell.
Same with the note holders and insiders, they decide and set their own price to sell their stock.
The longer it takes to get an ask slap, the more likely one of the noteholders or insiders will dump to the bid.
Considering that everybody sets their own price for their own actions, maybe that site can explain how MMs manipulate the price.
Of course MMS job is to "create a market" for the OTC so if they put in a large buy order at the bid and can sell it at a profit on their "ask" well, it's their job.
But it all gets down to what investors are willing to do when they set their prices, no more and no less.
GL