Google mentioned as below.
"To improve the mobile search experience, after January 10, 2017, pages where content is not easily accessible to a user on the transition from the mobile search results may not rank as highly."
And RTP Web Campaign Dialog seems to be "interstitials", and maybe Widget also.
I am afraid that we should not use these for SEO target pages.
Does anyone have some great ideas how to use Dialog / Widget with current pages/sites rank of Google ?