I think the thing to keep in mind is that to move to the next level with wireless [headphones / speakers], we need Apple and several other manufacturers to force the issue. I agree that there are numerous negatives with current BT wireless tech, but it has improved significantly, even over the last few years. I would bet that we'll see far more improvements over the coming year, because Apple and Samsung drive the bandwidth to make it possible.
And as much as it's easy to point out the issues with current BT headsets, just think about the wired headphones we've all used for the past 5, 10, 20 or more years (assuming you've been alive long enough). The one thing that has been the weak link with every pair of headphones I've ever owned...is the connection wire. Either the wire ended up fraying at the plug, or pulling out of the headphone itself, or some break happens within the cord, so that sound can't be transferred. There have been some other issues, such as the ear piece breaking or falling off, but I remember every wired set having issues.
If I did some simple math, in my lifetime I've likely bought and used at least 37 headsets (1 per year starting when I was 13) and they've all suffered the same fate. Over the past couple of years, I've switched from wired to wireless (headsets and headphones) and can say that all my current 5 BT headphones / sets, still work. The wired Apple headphones that came with the iPhones I upgrade to each year get passed to my kids, and I've watched the same thing happen with them - they all survive a few months before they're looking for a new pair.
Perhaps I'm tough on my headphones, but I don't think it's anything outside of the norm. I work and travel and headphones went into and out of briefcases and backpacks. And all the other tech items I've had, I keep in pretty perfect condition, so I think it's easy to point to the wired headsets as the weak link.