We ask questions like “why don’t aliens wear clothes? they travel all this way and don’t even dress for the event”.
What if they ARE dressed? What if their space suits aren’t ridiculously heavy and bulky like ours, and this is what a high technology society’s space suits looks like?
The actual aliens would look completely different.
Would explain their weird “eyes” too, if they weren’t “eyes” but were a type of “visor” – perhaps THAT is why they classically seem emotionless.
Would explain why they can walk around in our environment “unprotected”.