As frustrated as I've been with this issue, I don't know if a recall will be the answer but rather a software update or a repair extension. I've come close a few times to just throwing in the towel but I have to remind myself that it's Apple, not [insert name of PC company here], and it'll get fixed eventually.
If the issue is hardware, and the Apple Store (or AppleCare Customer Service) is unable to find the problem, then it's worth it to keep pressing for a resolution, especially if you have AppleCare coverage. Just because they can't reproduce it doesn't mean it isn't happening. I went in with two (2) videos of the issue while it was happening, and put them on the computer itself. --It may be worth it to do the same, especially noting the time it happened.
I spoke with a Genius at the local store, and it was suggested that AppleCare can "escalate" the issue to their engineering department. If you are under warranty or have AppleCare coverage on the machine, it is definitely worth your time to contact AppleCare (customer service) for resolve first, and build a solid case history, too.
Meanwhile, I am curious if anyone affected has tried the 10.13.6 Public Beta or "downgraded" back to Sierra; it may be worth a try to see if the issue is resolved (my $$$ says if it is software, and it is fixed then it'll be in the High Sierra beta).
One other thing...
+ Microsoft Office 2016. When reinstalling, has anyone ran their machine without installing Office 2016 (if you use it), and replicated the issue? I've seen a few comments that said it started when they installed Office 2016 on Google searches but it may be a red herring. I am allergic to Microsoft products but have used Office 2016. I did not install it after the last wipe/reinstall, and am currently crossing my fingers.