A few people that get interviewed by a reporter do not make a trend.

I've heard of SALES ENGINEERS making that kind of money, but not technicians.

The moment a programmer is working at home remote making $300K per year, the employer will find some offshore person to do it at 10% of that price.

Reference Disney and the H1B debacle etc.

The only way somebody as a technician is making that much money is the company they work for hasn;t found a way to get rid of them yet and replace them with cheaper options.

They can find themselves out of a job very fast at that price range.

Once you do the initial setup and things are stable(documented), they will kick you to the curb and replace with $50K worker.