Bitcoin not being a crypto currency is a way of minimising the publicity of the term "cryptocurrency" while fostering the popularity of Bitcoin. Generally, the term Cryptocurrency sounds like scam due to the impression already created by altcoins, shitcoins and Airdrops among many investors especially the newbies who wrongly invested in them. Using the Specific nomenclature Bitcoin" could reduce the phobia among newbies who have been victims of the extreme volatility and crashes of shitcoins. The reputation built by bitcoin is not supposed to be misconceived as other shitcoins which is the point @ZerovinsonN was trying to emphasize.
Bitcoin introduction and terms usage greatly matters when information a beginner about bitcoin since a little misconception or can sweep the beginners off the pace leading to increased panic response to bitcoin Volatility should they eventually invest in bitcoin.
Mate I love your write because you didn't argue some fact rather you put a good piece of writing to expatiate further the reason why many Bitcoiners wouldn't want to associate Bitcoin with the cryptocurrency, just imagine as space littered with some sort of shitty coins called shitcoin, memecoin or whatever they are been called, so it really looks like as scam as you said if it not already, I wouldn't want to even talk about airdrop itself because the shit called airdrop has been one of the reason some persons out there don't really trust anything relating to digital currency even Bitcoin itself although thats there business since they don't want to still learn even after going through some mess while doing those time wasting things. I don't like discussinguvh about those unrealistic goal called altcoin and it's sister, so my advise for all newbies is, don't think altcoin way, Bitcoin worth of your investment, start now, no matter how small, you won't regret it later.