All true, but simultaneously, if you look at it not in the “how did we get here” but “what’s out there today” light, it’s an option that can run on a lot of platforms. Not by some particular merit but because history happened this way - but that’s not a problem with the technology itself.
I concur.
The article defines "success" in the Windows context as being "available everywhere". It does not address how it got to that point.
And sure, you might not like Microsoft, and you may not like how it became successful (using the above definition) but the fact that it is available everywhere is not in dispute.
Of course most successful things have murky pasts. We don't necessarily agree with how it got there, but there it is. That is, at least in the technical sense irrelevant. You may prefer LP's or CD's, but streaming is now the successful way to get your music.
That doesn't mean it's the only way though, and of course you are free to not use Windows programs, or play games via Steam etc. That is your choice.