Out of everything you've said, my only takeaway is that og:image is useful for Facebook and Twitter. I'll happily admit that's true, and I use it on my own site

Out of everything you've said, my only takeaway is that og:image is useful for Facebook and Twitter. I'll happily admit that's true, and I use it on my own sites. Otherwise... What does "MUCH more reliable" even mean? The rest of it seems to be you trying to catch up to RSS...