At risk of potentially quibbling in an article that is primarily about how certain fish can tell whether or not they are badwrasse by looking in the mirror; the honestly kind of weird thing about aphantasia is how it (mostly) doesn’t interfere with task like size comparison that one might naively expect to work by generating a mental image and comparing it to the visual one.
There may well be some differences(not actually sure in which direction) that you could tease out with careful testing; but it’s not like people who can’t visualize things are incapable of telling whether they are larger or smaller than others or eyeballing whether or not a suitcase will go into the overhead compartment or the like.
