As the site itself points out (kicker), this page is Ads page and it's optional to create IV for it.
Type of issue
IV not generated for target page
Reported
Apr 4, 2019
Log In
Log in here to create Instant View templates. Please enter your phone number in the international format and we will send a confirmation message to your account via Telegram.
I don't see any reason to not support it and other templates do that