No point in referencing MLP, as this is not MLP. And the magitech revolution also actually helped advance magic by a lot. Plus there were other artifacts that were in possession of non-magically inclined people that suppress magic. And what reason could they have to stop science advancing? The Iscandarians have always been a very progressive people. I know a lot more about them then you do, as I did create them, so I would know how they act better.