That's the one, very nice, and very true what you said about losing the modeled aspect of it all when they become samples.
That's all the more reason why the EULA is so amateur and unprofessional. It should be illegal to put such restrictions into the licence of such a product. When you convert to samples you're removing the live modeled aspect of the instrument in exactly the same way you do when you sample a real piano or an FM synth. Native Instruments are another bunch who think it's fine to place such restrictions on products that are sold to sound designers. I have their FM7 synth from way back, love it, and it has a perfectly acceptable EULA. I don't see any restriction on converting any instrument I synthesize with it, into a set of samples for use in a sampled product. So I thought I'd upgrade to FM8, but that was until I saw the EULA for it - which doesn't allow it.
I have names for companies that place such restrictions on products, but it's best not repeated on this forum.
I can understand such restrictions designed to prevent direct copies of samples being reused, but putting these restrictions on actual synthesis is disgusting and completely immoral. It should be illegal because it's no different to a pencil manufacturer saying you cannot digitize the drawings you make with their brand of pencil, and sell them in a book. It's every bit as ridiculous and unacceptable.
My way of dealing with such companies is to simply avoid purchasing their products, and to tell others about the restriction. I basically give them the big finger (which is what they deserve).
But anyway, that's a whole other subject and the thread would only go off on a tangent again talking about that stuff. But it's a perfect example of why Open Source physical models and synthesis is a big deal. It means we don't have to deal with that sort of crap. I'd love to see a piano as good as that in Axoloti.
There's a guy on YouTube, I don't know him personally, but it would be great to have him using Axoloti, and for all I know he might not even be aware it exists.
Here's a couple of his models, but check out his channel for a whole bunch of them: