I really cannot see metal tones getting added here and i’m surprised people think they want that.
Imagine you’re sat at your recording rig, semi hollow body or telecaster or jaguar or whatever at hand. There’s already a lot of presets, but they all kind of make sense for these guitars. You can do indie stuff and some 80’s tones too.
Now imagine a load of Killswitch, Machine Head, Metallica, Gojira, Meshuggah, Pantera style presets clogging up the preset list. It just makes the preset list way more of a lottery and random, and if you’re using one of the guitars mentioned above then you almost certainly don’t want these kind of tones getting in the way while you scroll presets. You don’t even really need a filter on the presets list, you just don’t want them.
And put another way - imagine someone with a 7 or 8 string with active humbuckers plugging into this. Maybe they’d get some mileage from the clean/ambient tones? maybe some fuzz or something weird? For the most part there is going to be zero overlap, it just adds clutter that can be avoided in going to the great trouble of just instantiating another plugin.
Think of how Sound City and Ocean Way are seperate plugins. Or Hitsville chambers and Capitol chamber. or 224 and 480. They all probably have more similarities to each other and overlap and yet they still make more sense to seperate them.