This mindset is what the author is addressing. This strategy may have been acceptable in the 80's, 90's and 00's when advances in computing power were coming in leaps in bounds, but the 10's and 20's have seen a much slower advance in computing power. I mean, good grief! I was running Garage Band on my original iPhone SE using an audio interface for my guitar and several Audio Unit effects chained together. The phone handled it just fine. There's no reason you shouldn't be able to run the overwhelming majority of today's apps on these "old" platforms.