Exactly, It honestly does not bother me anymore, since I gave up a long time ago on an open zoo, the unrealistic and cartoonish human figurines just walking thru everything take away from the realism of the zoo design. However since I do like the vending machines, here is another question, why can't Planet Zoo have its own identity when it comes to a lot of these props? Why can't we have vending machines with stripes, spots, the scales of a snake, or just some animal concept art or pictures? Why do we keep on getting these genetic Street Coffee, and Pipshot Smoothies, etc, what do these things have to do with zoos or anything related. I understand why they were part of Planet Coaster, since they definitely look the part as props for a theme park, but not a zoo. In any case, Frontier does a great job, just wish that they paid closer attention when it came to certain details that make a big difference at the end.
Having giant pandas available (unless China just decided to be overly generous with their pandas) and keepers walking into habitats with the animals kinda takes away any realism right off the bat.