Hi - Perhaps you would have better luck and have less grounds for attack if you take a more long term view and focus your research on the idea of cryptocurrencies in general, as a superior financial technology - rather than bitcoin specifically.

The arguments about it being deflationary are therefore voided as that's specific to bitcoin. You can argue along the lines of "when" bitcoin fails, it will be replaced by something superior that improves upon its problems, as in its current form its kind of a beta version...and subsequent versions will entail further evolution of the technology until we have a system that is ready for mass uptake.

I'm not saying I think bitcoin is doomed to fail...but your tutors obviously do! So for the purposes of your project, if you want a higher mark you won't get anywhere by complaining to your professors that they are simply wrong about bitcoin. It will just annoy them and further cement the view they already have. Instead, you'd need to find arguments that are not direct contradictions of their own opinions, make them think a bit more long term about the technological and economic impact of this type of technology - etc.

The less you mention the word bitcoin, the better. There is definitely a game to be placed in academia.

good luck with your project