Can the default View settings for Spotlight "Show all in Finder" be changed?
It doesn't seem possible
Notice that when you switch to Finder search, the View &gt; Show View Options does not display the option to set window viewing defaults like a regular Finder window does (a):


If you find the search inadequate and not just a cosmetic irritation, it may be useful to further refine your Finder search with additional filters that can be accessed from the filter buttons (b) or directly in the search bar.