Pooh is an ISFP and Piglet is an ISFJ. I mean I don't even know why you would consider IxTP for Pooh, I'm sorry, but that seems ridiculous to me (no offense to you personally). I have seen people call Piglet INFP, but I'm pretty pretty sure he's ISFJ.
Everything else I agree with you on, totally.
Wait...what do you have Eeyore as? There's your INFP.
I think you have Piglet and Eeyore mixed up. Eeyore is a depressed INFx
"Sentiment without action is the ruin of the soul." - Edward Abbey
Piglet seems ISFJ to me, and Eeyore seems ISTJ. Pooh doesn't seem like a Ti-dom at all. I don't think each cognitive process is represented by a character.....I've never been a fan of this cartoon though.
"Charlotte sometimes dreams a wall around herself. But it's always with love - So much love it looks like everything else. Charlotte Sometimes - So far away, glass sealed and pretty." - The Cure