How often is it where you have no idea what amp you need, and that there’s a chance you need either a Fender Champ or an ENGL savage?
So long as the packs are combined enough (e.g. all fender amps together) I think it’s fine. In some ways, it’s arguably better than the long random list of amps in AxeFX where there isn’t really any method to how they’re sorted and the only thing you can go off to find what you need is to read them. I see the different packs as almost like sub folders so you don’t have a Bogner Uberschall getting in the way of your Vox’s or a Dumble getting in the way of your Marshall’s.
I can’t think of a single person that I have seen or know that’s used the T Racks container plugin. It absolutely sucks ass to look at your mixer window and just see the name of a container, and then you have to open it to see what’s inside. And when you need another plugin in between, you have container->plugin->container. It gives you way less information than just having separate plugins like how they were intended. Slate VMR realised this and listened to the demand - VMR got more and more bloated as time went on, the gain staging between modules was a nightmare, automation sucked, you’d have to scroll around and expand views to see what you need; you have to open the plugin to see what’s actually inside.
You get like a handful of small benefits by having a container, and in return you get a landslide of bullshit that makes things worse. Way better to just open several plugins and do your routing in your DAW. Having it all in a container is a fetish that doesn’t serve much practical use in real situations.