is there a single psuedo-legendary that has been as badly treated as this one?
All of it's power is just in it's monstrous ATK but it has nothing to support that ATK. Like in SV, it's literal only gimmick is to tera bug and first impression one thing before it blows the fuck up, I guess it also learns Iron Head in SV but that's hardly enough without a second typing to make it more defensive. Being a mono-type Dragon also just hurts it.