that they're not doing fine software-wise

The reason of course being the awful software, not the hardware options. He makes that abundantly clear in the text.

You missed my point, the original comment is stating that the market for such a device doesn't exist because developers are too finicky and customisation focussed.

As a counter example - look at macbooks which are about as un-customisable as they come, but a large portion of developers use them. Meaning the market exists even if it's currently dominated by Apple (which as you/the post points out is slipping)