They left a part out...
"All of this despite the Department of Labor having, in many cases, certified that no qualified US workers are available to do that person’s job." ... AT THE CURRENT PAY RATES.
They leave that part out so they can lie by telling a half-truth: Sure, they cannot find the talent they want locally ---- because they will not pay for it.
And, they won't pay for it because ultimately IT workers are not viewed as valuable.
They're viewed by upper management as just more expensive versions of the people that clean the company toilets - the company **must** have them, but they're really not strategically valuable in their view.
So, why not import cheap labor to replace all that expensive overhead and hide behind the "we cannot find anyone" lie?