I just flashed it myself after reading this, everything went fine. Perhaps you had a bad download, but even there is no reason why it should have bricked the tablet. What recovery are you using and how did you instal it?
Sent from my Barnes & Noble Nook Tablet using Tapatalk
[CENTER]My Android Files
LG Optimus Elite - Rooted - My own homebrew carbon rom
Samsung Galaxy S3 (d2tmo) - Rooted - SOKP 4.4.x
Barnes and Noble Nook Tablet 16GB - Rooted - Official Pac Rom 4.4
If I can do this, anyone can do this