If you and I cut our revenue then we also cut our spending. To do otherwise is foolish and will only cause even more problems in the long run. Trump doesn't do that. Even if his tax cuts defied every prediction and did wind up being revenue neutral we're still currently running a half-trillion dollar deficit and Trump has promised to increase spending on the military and infrastructure, while leaving Social Security, Medicaid, and Medicare alone, and imposing his replacement for Obamacare which will cost God knows how much. And he has proposed no spending cuts to offset them. He could easily run up another $10 trillion with his tax claims coming true.
No, like the article said when revenue is cut on rich guys like me what gets cut is savings/investing, and there's still lots left over for continuing regular spending.
What's not commonly known is that lifestyles don't change that much above a certain income level. Most millionaires drive a moderate sized car that's several years old. One reason is that the rich think money (that's how they got rich in the first place). Another reason is that everyone --everyone-- has to deal w/ limits, and it's just as easy to set the limit way below 'opulent' and be happy w/ 'comfortable'.