Should "fake archetypes" be allowed?

When I speak of fake archetypes, I mean a set of cards that support an unusually specific category of monster: for instance, FIRE Plants, or WATER Spirits. This can allow one to more or less build an archetype, while bypassing any restrictions on the making on archetypes as you do so.

Pros
* the monster's effects and what they can target/tutor/revive are much easier to control. Instead of checking through every DARK monster and every Warrior-type monster to make sure nothing gets broken or loops, you just have to look through all the DARK Warrior-types.

* Support for that specific false archetype is easier to control, but allows other members to add to it. Real archetypes like "Knights", "Sorrowsworn" or "Thorium" include the same support but tend to alienate members who are not familiar with the meaning behind the archetype, while naming or designing their own WIND Dragon-type monster or FIRE Rock-type would feel more welcoming.

* In exchange for having less targets, its support could be more powerful than the cards that normally don't discriminate on what its targeting/affecting to make up for it. (more support for Pyros vs better support for DARK Pyros)


Cons:
* As with all archetypes, its exclusiveness and differences can be a drawback. Fewer targets makes inconsistency more likely, and decks less varied.

* If badly made or too weak the incentive for using a false-archetype over a generalist/meta deck is outweighed by its flaws. AKA Why run DARK Dragons when just plain Dragons are better?

Neuts
* Types and Attributes need to have their own expansions and functional decks before false archetypes should be made. (Wow, look at all this WIND Aqua-type support. I wonder where the hell the non-aqua-type WIND support is...)