I'll bet that elements of this debate also happened amongst the product managers at CZ, who probably recognized if they offered just one option or the other, that they would be criticized and lose some sales.
The "faux" can is highly suggestive of the configuration that many people aspire to, whether they will actually get the tax stamps or not.
On the other hand, while the pencil barrel might look more utilitarian but less cool, I would note that SCARs are noted for having pencil barrels, and I've never felt any anxiety about how my SCARs look - or perform.
Having said all that, I would go for the EVO with the faux suppressor - if I didn't already have an EVO that is set up the way I want.