I haven't heard this before. In fact, there is no level 2 requirements for the flightsuit on the ESB CRL. I don't think it matters as it's not visible at all.
Every other level 2 or 3 requirement is something you can see (such as a specific material, color or a part that should be used) or functionality (servo for level 3).
The mojo behind the scenes doesn't matter as long as it looks good.