its the same process you still have to flash the SBF, so no un rooted droids cant get froyo unless they root.
THIS.
"root" doesn't JUST mean typing "su". It means having access to change things that a non-root user cannot. That DOES include the recovery console. So, in summary - if you have to install SPRecovery or Clockwork, that means that you had to use superuser access to do it (via RSDLite), and you have effectively "rooted" your phone. Just because you didn't install the su binary to allow continued access to su doesn't mean that you didn't already install unapproved software and modify system files that a normal non-root user cannot.
When a Froyo Release Candidate gets released that is signed to be installable on the Droid WITHOUT SPRECOVERY - that is when we can say that rooting is not required.