I believe what happened with Hell Poodle is that we didn't mean to sell it either through shop or spend credit requests, but the handling GM of the first Spend Credit request for a Hell Poodle was unaware of this for a while and thus filled out the spend credit requests. After that, we had no choice but to generally allow it to keep things fair. It was a problem of miscommunication within the staff, which was the "fuck up" that was mentioned.
This does, under no circumstances, mean that ANY card that is not in the shop can be obtained via Spend Credit. Usually if it's not in the shop you can't get it via spend credit either, unless it's something like a new custom kaho / bell request.