For me rules are merely tools of the writing craft, like a chisel for a woodworker or a fan brush for an artist. Understanding the effect created by a particular rule determines how I can best use that effect to strengthen my piece.
Ending a sentence with a prepositional phrase takes the power out of the sentence. “No one can hear you scream in space”, isn’t nearly as powerful as, “In space no one can hear you scream.” In an action scene the pacing is fast. Sentences are shorter and tighter. You want to avoid putting distance between the reader and the action. Ryder’s pulse thudded against his jaw. The tiny hairs at the back of his neck tickled. From behind him came the muted sound of Deke rising. His spurs chinked softly as the rowel brushed the short grass. Once your action has passed and you need to give the reader a break, longer sentences ending with a few prepositional phrases adds to the flow.
With eBooks flooding the market like sand on the beach, taking the time to craft a polished story shows respect for the reader and like cream, will eventually rise to the top.