Is going too far a good thing? - It could work either way
Going too far = Unrealistic , Hard to develop
If you are pioneer of something, you have nothing much to refer on. Maybe "Unrealistic" should not be the word because every idea has its success criteria. It will be of course hard to develop for the ongoing future roadmap because you does not have any Case study to look for, like we can see hard fork of Bitcoin, ETH and ETC.
But did anyone see split chain of a mobile crypto blockchain? Its a challenge here
Going too far = Visionary , Market Capture + Learning Materials
By starting the first of something, this shows that you are a visionary leader because you see something people don't see. If electroneum are successful after the operations and fundings, they would capture a huge marketshare in the mobile crypto segment because they indeed, are kinda success here as they already raise around $10M based on the current price of coins.
Although if they couldn't go far ahead, they still brings benefit towards the crypto community because people could use "Electroneum" technical whitepaper to make it as a references
IMO, i would say its a good thing to expand into a new field, Electroneum should be a good coins there