Read the full guide. It says that you can treat your emunand as rednand. It's the same

 

Replace REDNAND with EMUNAND. If you really feel is bothering you. Or check what the difference is. I think to quote the guide ReDNAND is smaller filesize Trimmed compared to EMUNAND which is not since is larger.

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Q:What is the difference between RedNAND and EmuNAND?
A: RedNAND and EmuNAND are both different types of NAND redirection with small differences in the way they are handled behind the scenes. The main advantage to using RedNAND instead of EmuNAND is that RedNAND will always use the smallest NAND size the device offers, regardless of the size of the SysNAND chip. For example, a New 3DS user with a 1.8GB internal NAND chip will only have to use 1.2GB for all RedNAND backups.