While I can agree it is an owner's problem with a cheap PC/laptop (though by the way, most all-in-one desktop PCs, which seem to be gaining ground, which are still technically PCs as are laptops, are soldered in components), and you can upgrade to it, are most people going to upgrade over it? Doubtful. It's why it still provides some limitations by its very means of market forces. Now, SE can quite easily say to PS4 users and PCs with lower specs "We don't want your custom anymore until you get a beefy PC" (see FFXIV 1.0, from what I read, it had problems running out the wazoo). Business-wise, it causes limitations because you have to weigh up do you want to cut those people out of the loop, or try and work around their PCs. It's a limitation, albeit a more indirect limitation.