The login/authentication process can be quite cumbersome. Every time I try to access it thru the PC browser, it takes me thru the process of sending an email, which I then have to open & click on the link, before the browser proceeds to log me in.
If no access to the email account is available at the time, it is impossible to proceed.
If the issue occurs on a mobile device while traveling (ie: using iPad in a flight), then the app becomes inaccessible (for watching pre-downloaded videos).
If would be much more practical to have a simple login & password screen, to allow us access.