Speaking for myself only... (this applies to all my answers)
I am not a lawyer, and am not really an expert on licenses (I know enough to know that, at least). I've read opinions from experts saying that the BSD+Patents license is risky for adopters, and I've read opinions saying it's just fine. I'm not sure where the truth lies.
While I think in practice for most projects the license is unlikely to be a big issue, it is a blow to the extent that we've devoted a bunch of cycles to debating this issue and there are some people who are worried. Thankfully there are a variety of great alternatives to pick from in our ecosystem!