It's probably bootable in Macs which have SCSI Manager in their ROM, which includes the Power Macintoshes and does not include the IIci.
I believe that the AV Quadras were the first machines with SCSI Manager in ROM and all machines after that had it.
The FWB Jackhammer card has SCSI Manager in its boot ROM on the card. Also the Daystar Turbo 601 loads SCSI Manager from its on board firmware.
An interesting B.Braun project would be to add SCSI Manager to the early machines using Doug's custom ROM module.