While I agreed with almost all of what was stated in your OP, I have to say that I really appreciated the time and detail @srwhite took to document his journey (ALL of it). While I may not have used his exact approach, he did look at the issue from multiple angles and I never felt he was trying simply to prove his issues were the fault of the Hub itself. I'm sure he had his suspicions but didn't seem to let it influence his methodologies.
There have been many others before who came in with the intent to prove the hub was at fault and refused to do basic troubleshooting, or wanted the HE team to troubleshoot their faulty code (the self entitled crew as I call them). Speak loudly but say nothing types. Thankfully most have moved on and their goodbye posts brought me joy.
@srwhite definitely did not fall into this category and I hope his continued testing yields something that will help harden the HE hub. I love my hub but let's face it, it's a bit brittle. We need knowledgeable and more importantly PATIENT folks who are willing to professionally post their finding and work with the HE engineers to improve our overall experience.
@SmartHomePrimer , Thanks for your thought provoking post. @srwhite thanks for your willingness to document and share your finding and continued testing. I think it was a benefit to the community.