The fact that the gang was able to create their Tigger costumes in less than a day certainly seems impressive.
It was implied everyone wasted so much time trying to comfort Tigger that they had no time to make preparations for Winter. In the end, Tigger rapidly fixes all of it for them (eg. builds a house for Eeyore, collects a giant pot of honey for Pooh, and a ceiling tall pile of firewood for Piglet).
Tigger quickly rescuing all his friends by bouncing them onto the "family tree", essentially performing a Heroic Sacrifice to save Rabbit.
Immediately followed up by the two of them using that bounce to escape the avalanche together.
A blink-and-you'll-miss-it case, but when the others are perched on the tree, Rabbit manages to stop a heavy gust blowing Eeyore away.
A Meta-Example, but this movie was originally supposed to be released Direct-to-Video. Then Michael Eisner, the CEO of Disney at the time, thought the songs that The Sherman Brothers composed were so good that he decided to give the movie a theatrical release.
The end credits are accompanied by illustrations that capture the look and feel of E. H. Shepards original drawings to an impressive degree.