People are focusing on Intel because they're the only player that really matters. It's not to beat up on precious Intel. That's why #IntelMeltdown is the meme even in the press. Intel is in the vast majority of the world's datacenters, and the majority of desktops. They run a lot of varied software, it's the wild west. Your phone is a non-issue, it's patched and you move on. Not the case with servers.
AMD is in an enviable position and someone deserves a raise there for their architectural choices. Spectre needs protected against, but the big flaw (Meltdown) is not an issue.
The performance impact for Intel is huge, and it's understated in the press. They don't want to anger their masters at Intel by pumping this up.
Patch tracking, not even fully patched yet: https://gist.github.com/woachk/2f86755260f2fee1baf71c90cd6533e9
Java compilation, 75%+ loss: https://twitter.com/PCzanik/status/949275491617464320
Server impact, 30%+: https://imgur.com/a/zYRap#HGvuXnc
Gaming minimum framerates, 50%+: https://np.reddit.com/r/pcmasterrace/comments/7obokl/performance_impact_of_windows_patch_and_bios/
That's gaming, the main "concern" for most kids on sites like this. Be interesting to see how this all pans out once the dust settles in a few months, but don't expect the above results to be the end of the performance hit on your Intel rigs. Expect games that stream textures to get absolutely hammered on minimum framerates. Given that minimum frames are the most important aspect for gamers (only as good as the worst performance), this is huge.
The good news is that CPUs have been overpowered for a long time, so the loss isn't going to do anything but butthurt those who live life as benchmark queens. You can also just ignore and not test for minimum framerates, 0.1% lows etc and pretend there's nothing to see here.
But buying Ryzen isn't a bad idea, hop on the AM4 bandwagon.