Well, then if you can convince the EU to force Apple to allow uncensored models that will happily teach you how to make bombs and all manner of things like that, then you can have those models on your iDevice. Not sure the EU is going to jump on board that kind of free speech though.
You could make the same (unconvincing) argument for apps on third-party stores, teaching the same dangerous things or doing even worse things like (gasp) allowing pornography :P
Generally speaking, Apple has maintained rigid control over apps and have banned everything you mentioned.
If EU app stores fill up with pornography and terrorism apps, you can imagine their move will be decried as a debacle and used by Apple to demonstrate how the EU failed by forcing them to open up
Apple already has the CoreML framework anyone can use to do on device processing. They even have tools to help convert things into the format the iPhone uses. As others have pointed out you can already find apps with public models on the Apple App Store.