I saw your reply before it was deleted. I am sorry you are taking this personally, but losing connectivity is just a common "symptom" that can be caused by many different problems.
It can only be a "design flaw" if the cause of the connectivity loss is due the exact same
"discrete" component, circuit, code, etc. failing in each case.
Lenovo is the world's 2nd largest computer maker having just been leapfrogged by HP. Lenovo sold over 50 million!
computers in the 4th quarter of 2016 alone with most of those being laptops. "Hundreds of posts
online" complaining of connectivity issues is but a drop in the ocean and on top of that, in no way points to a specific device, circuit, or bit of code failing - or specific Alteros device either. It is not a design flaw. If it was, there will be 100s of 1000s of complaints on-line, in tech news articles, and elsewhere pointing out specific models. Not 100s of vague "lost connection" posts. And that's just Lenovo. Many notebook makers use Atheros adapters and many wifi adapter makers use Atheros as their OEM suppliers. And Atheros makes several different adapters of various designs too.