Bonjour Patrick,
Thank you for your feedback! We decided not to include the punctuation in our dictation exercises as it interrupts the flow of the text and these exercises are not set as strict "school-like" dictation exercises. Also, punctuation is not penalised in these exercises as they are self-marking exercises.
Take a look here for more feedback from other users: punctuation in dictation / Punctuation in Ecriture.
I hope this is helpful.
Bonne journée !
