There are far more issues with Aramaic Primacy than the two I mentioned.
One of the first issues that comes up is the absence of early Aramaic texts. Basically nothing older than the fifth century. Fragments are notable by their absence.
The Western Five are conspicuous by the absence of Greek puns. The Gospels have the highest density of Greek puns. The Gospels do contain puns in the Greek, that are not in the Aramaic.
Whilst there are differences in the Aramaic texts, they tend to line up with each other, but not with texts from the Greek, Latin, or other Biblical Language Manuscript families.
if you read david bauscher notes in his NT there is no argument left that Aramaic ROCKS!