No, it wouldn't because the emunand would be booting off of firmware90.bin. Then it would be a simple matter of booting up ftpd, transfering the new firmware.bin over, and then going back to sysnand again. Fortunately that is no longer necessary and the only reason I haven't fully removed it yet is laziness.
True, but on my setup currently the only thing I am missing out on is a little bit of extra space from the now nearly useless 9.2 emunand. And how can you remove emunand without backing everything up, reformating/repartitioning your sd card, and then copying everything back?