The app still works just fine on my side. Anyway, the development for this app is currently stopped.
What do you mean updated with the new api? It uses the latest API version which is v3.
So, until it’s not locked, a visual bug: at least they should have some spacing.
I would say yes. Videos are one of the best ways to show how-to’s. However, keep in mind that if you upload the video on YouTube, Vimeo, etc, it might not be available for everyone as there are countries out there that have these services blocked. So I would say that screenshots would be the best way.
I wish envato will create a 2 steps autentification sometime, like using the Google Authenticator for example.