You also missed that Macs were becoming pretty popular before iPhones existed. There were multiple reasons for this but the timeline is nowhere near as simple as you portrayed it.
They were becoming more popular when they switched to Intel CPUs (was it a year before iPhone: 2006?) and with original Air, but really, this was only felt in the US. With M1 they really went ballistic globally.
But sure, it is a simplistic look: for the purposes of the commentary here, I did not want to pretend this is the full analysis, even if I could do one (and I probably couldn't).