I guess there’s nothing really (ultimately) stopping them from cloning said software. China doesn’t exactly have a strong stance on protecting intellectual property, so I wouldn’t put it past them to allow or even advocate for building an Office 365 clone of tools, or an equivalent to Acrobat, or whatever.
But that takes time and money, and I just don’t see why they think that really benefits them. Windows 10 and Microsoft Office is much harder to steal now – enough that it’s just not worth the effort, even for those that would otherwise steal anything, because the cost is a little more reasonable over time. Expect that to become even more so with next year’s announcement of 365 Life (the consumer subscription model for Office).
What do I know, though? What I see as irrational, short-term thinking might seem advantageous else to them. Or maybe they’re trying to spark a wave of “technological independence” through national loyalty? Except they already tried that with DRAM and other chips and never caught up. Likewise with other “innovations,” so I assume the results would be similar.