

I mean, he’s technically correct: the constitution gives congress the power “to constitute Tribunals inferior to the supreme Court.” The only court the US technically has to have is SCOTUS, although it’s hard to imagine them hearing every single federal case.
Interestingly, Congress does not have the power to fire or reduce any judge’s salary, except by impeachment.
Your articles seem to say that congress has periodically rearranged and eliminated “Article III courts,” recently avoiding the Constitutional crisis of not paying judges of the eliminated courts by posting them elsewhere. But I’m no lawyer, so maybe I’m misinterpreting “In 1891, Congress enacted legislation creating new intermediate appellate courts and eliminating the then-existing federal circuit courts.” and “In 1982, Congress enacted legislation abolishing the Article III Court of Claims and U.S. Court of Customs and Patent Appeals”