It really is a currency, however. It's not a matter of perception but rather of how Bitcoin functions. The biggest difference between a commodity and currency is that a commodity is essential for some process or product. A currency is just one of many ways of funding that process/product. You can't build a computer without gold, copper, and some rare earth metals (commodities) but you can pay for it with USD, bitcoin, yuan, GBP, etc.
Aswath Damodaran has written a lot more on this topic. https://aswathdamodaran.blogspot.com/2017/10/the-bitcoin-boo...
He does agree with you in that Bitcoin will be judged as a currency, so its strengths and deficiencies as a currency will determine its fate.