> It probably wasn't intentional, just incidental.

The reason people assume intent is because such things often enough are intentional. Making your product harder to interoperate with outside of your control is a well-established practice for SaaS companies, particularly the big ones[0].

The reason this blog post has a story is not because this behavior is surprising, but because it's annoying, and because it can be construed as an accessibility issue - accessibility being the only excuse for having sane computing experience that won't be dismissed as "silly power users with their silly wishes".

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[0] - See e.g. the lengths to which Facebook goes to make it hard to work with its DOM.