Answer: I don't think so.
One should never make "absolute" predictions when it comes to Apple, but there are several fallacies and non sequiturs in this article. Here are some of the most obvious:
1.) "...the Apple Switch ad campaign was over, and nobody switched."
-- Firstly, to say "nobody switched" is incorrect. With Apple's unit sales consistently increasing the way we have seen reported, SOMEBODY is indeed switching! Secondly, admittedly the Switch campaign itself had limited results that could be attributed to it, but most will agree that it was not a strong campaign.
2.) "...iPod lost its FireWire connector because the PC world was the new target audience."
-- Well, duh! Apple was aiming for unit sales, so it naturally recognized that many more potential iPod buyers had Windoze PCs than had Macs.
3.) "...although the iPod was designed to get people to move to the Mac, this didn't happen."
-- Says who? There are lots of anecdotal reports that this is precisely one of the drivers of Apple's unit sales increases. OK, I'll give you the benefit of the doubt: go ahead and quote me some reliable sources that support your statement!
4.) "... that Apple had switched to the Intel microprocessor."
This does not lend any support to the Windoze-on-Mac hypothesis. The reasons behind the switch-- which Apple has naturally not fully explained-- are explored in excruciating detail here:
http://macslash.org/article.pl?sid=06/02/06/1654252&mode=thread
**This analysis does nothing to support your position.
There are several other points that could similarly be shot down fairly easily, but I think the above suffice for now.