---Shouldn't be, Mi-Recovery will get replaced with TWRP at step-3, you must have perform additional task at that point.
Is your phone Redmi 1 model and did you download the correct TWRP version?
Yes mine i Redmi 1 model exactly same as yours.
these are my 2 files used:
HM1SG-TWRP-2.5.0.0-stas2z.zip
beta-SuperSU v.2.49 (is this the right file?)
Will try to download the files again and try again tonight.