Just to copy some tweets I sent to @zooko about this:
I’d love to not require this documentation, but it’s not tenable as a 501(c)3 operating within the bounds of US law. I would note that they only “dox” themselves to us/the IRS. In the future I’d love to mitigate this by having the community fund projects themselves (Monero does a great job here) with us only providing support infrastructure, and then have opt-in additional funding from the @ZcashFoundation (which carries the identifying requirement).