tldr: Pumas that are scared off their food by humans are still hungry and go and kill another deer, which might not be so good for the pumas and might help scavengers. Isn't this somewhat obvious?
Other things of interest is that we can actually see variance in behavoir increasing as human density increases. The error bars (standard deviation) on time spent at kill sites (or really doing anything) open right up the moment housing appears.
The truly destructive thing is roads and habitat pressure due to proximity of urban environments (noise, smells, food sources) that alter daily pattern. Large prey (deer, etc...) are creatures of habit driven by day/night patterns, wind, and their belief that everyone is out to get them. Seems to me They would be much more likely to alter their routine due to human pressure but the paper doesn't speak to that (if it does I missed it). And where the food goes, the predators go.
This is just my experience gained from being an avid outdoorsman for many years.