Well, my point still stands. How is one supposed to know that this particular headset had these sort of issues? I did extensive research before buying mine, and no one reported any such issues. Admittedly, it was still fairly new when I purchased it so there may not have that many reviews, but Sony isn't some random brand and their audio gear is generally well received.
On the other hand, I could just pick up any cheapo TRRS headset and know that it'll work without a cinch. We're just not there yet with wireless headsets if we can't even rely on reputed brands to work consistently.