With some digging, I discovered that GP Premium implements a filter on the blog settings when a loop-template is in use on a page — in my case a search results page — and the purpose of the filter is to set the infinite scroll and the read more button options to false.
I can see how that would make sense to avoid having the infinite scroll “Load More” button along with pagination buttons, but I’m wondering if it’s absolutely necessary or if it would be alright to remove/overwrite that filter in order to keep the Infinite Scroll working with the loop-template.