Partially based on meaning, as Saurabh mentions, and partially based on concision.
The opening modifier could be construed to mean that companies are doing two somewhat separate things in these tests: (a) choosing certain numbers such as 697 and (b) having an awareness that there are
connotations etc. Try reading
the original sentence starting with "Along with an awareness that..." and see if this helps you to spot
the ambiguity in meaning.
(Along) With an awareness that there are
connotations associated with her green hair,
the witch typically buys newt eyes, not human eyes, when she goes to
the store. Is she buying "awareness that there are
connotations associated with her green hair" along with newt eyes? Or is she
aware that green hair makes her look evil, so she wants to make sure people see her buying innocuous things rather than human eyes?
Also, "
Aware of the" is a lot more concise than "With an awareness that there are"