The 'text Boundaries' in Word 2010 were exactly what was needed, however 'accidental'.
You'll notice she never said it was accidental in 2010. That's because the entire use of the word "accidental" is, to use the polite phrase for "outright lie disguised as something else," disingenuous.
I discovered text boundaries pretty early on in my use of MS-Word. I liked it so much I wrote a macro to toggle it on and off from the toolbar. Still use it, although now the feature has been ruined. The date on that macro? 06/01/1998. Yep, the "2010 accident"
has existed at least for the past seventeen years.
No one is claiming that the accident is recent or limited to Word 2010. It was there in all previous versions AFAIK. The re-writing of the layout generation engine for Word 2013 changed this structure.
You are really willing to accept the "accident" characterization?
MS "accidentally" put a feature in the earliest versions of Word, "accidentally" made the feature accessible through the menus, and "accidentally" wrote macro language which they re-wrote as VBA code to access it. And then, finally, realizing their mistake,
"repaired" it 20 years later?
Can't help but notice your signature block (me too). That's a heck of a defense! :D
I think I can characterize it a wee bit differently. More like, they wrote a feature that people used for years and then accidentally trashed it and are unable to fix it. Problem with that is, as mentioned earlier, the feature is still usable in 2013/385
by using compatibility mode; that's "accidentally" gone in the 2016 preview.