Both the application is not same.

1. Let consider we are building Medium like blog applications.

2.and I separated this blog application into two part one for Writer(Django) and other for Reader(Flask).

3. Suppose while adding new feature to Writer application went some wrong now our Writer application is down but still there is no problem for Reader application.

4. Reader can easily like and view.

5. we are also increase like and view but no issue here also because message booker will store this information in it.

6. Once Writer application up it will update likes and views count easily.

7. But suppose if it is monolathic the our whole application will down.