The 2x2 frame within a larger creature doesn't look very good on its own... For a custom scenario, I considered such an option because the "gimmick," despite its somewhat flawed implementation, would still be interesting. But for a serious and meticulously crafted game mod, it's no longer suitable.
As an example, I think you are well familiar with NHF and the fact that some of the moments that are implemented awkwardly or not very conveniently there (for example, special units like Hafad) have explanations and caveats that clearly let the player know that these are technical problems of the game, and not flaws of the author. Well, I think the analogy is clear