(Foreword: I don't see any attached picture, but I think I know what it looks like)
Short answer: Product Finder detail page doesn't trigger plugins.
Here's how it works:
From the result list you can go to the detail page and back again without actually reloading the page. That makes browsing the results much faster and gives it the look-and-feel a mobile user expects to find. (see green arrows)
You can then visit the actual Joomla article, with all plugins triggered, by clicking the item title (see purple arrow). This action actually loads a new page.
Triggering plugins into the detail page could very possibly break the somehow "delicate" and javascript-reliant detail view. Thus it has not been implemented.