There are big challenges in any currency reaching a take-off point; I anticipated big hurdles for Bitcoin due to legal and economic issues (they seem to have no economists involved). Don't think Joshua did anything wrong by pointing out EFF's opinion, given that they have much better feel for legal issues.
The EFF has stopped accepting Bitcoins primarily out of concern with the possible legal issues. I presume that the EFF has a better understanding of any possible legal risks than organizations like the SIAI. It seems that the SIAI should probably at least for now put a hold on accepting bitcoin donations until these issues are resolved.