3DS LL 193k, NMB2 431k in 2 days

[NintendoPie]

I'll post these again:
[NDS] New Super Mario Bros. - First day sales (480,000) - First week (865,024).

[Wii] New Super Mario Bros. Wii - First day sales (420,000) - First week (936,734).

Why do people think it's doing bad for a Mario game when this proves otherwise.