This course doesn't use the fastai framework. But to answer your question -- the reason IMO to learn the fastai framework (or indeed any software which incorpo

This course doesn't use the fastai framework. But to answer your question -- the reason IMO to learn the fastai framework (or indeed any software which incorporates a significant amount of novel research) would be to learn about the new ideas that it introduces, in order to become a more effective and informed practitioner. And if you find you like it, you may even decide to use it.