Getting Mautic points or a tag when a user finish looking at a video

Hello,

first many thanks for this wonderful work of yours, that helps to work with targets that would be otherwise intractable.

I want to be able to check when a user finishes looking at each of a series of videos I offer. The result of this checking would be to add points or a tag to the user on Mautic.

My idea to do that would be the following, but this is just an idea, please tell me if I am wrong:

The plugin FV Foliovision allows to automatically redirect the user to another page when the video ends. So I can put in this other page the form to register. Then the registered user is supposedly logged-in and the confirmation page of the registration form may contain a shortcode to add a tag or points in Mautic for that user.

Is this possible? Or are there better ways to do that?
best