Conjure actually learns from your selections. So, if you search for gmail & then tap the Gmail app, it should be the first result the next time you make the same search.
I think the point is that if those are always the first 4 choices for every new query, it could get annoying quickly. Also, aren't those 4 suggestions redundant? Shouldn't it just have a single "search the web" suggestion, which pops up the standard browser selection dialog and allow the user to choose the default?