I was about to say the same thing and another mistake he made there is he when inputted Bitcoin 5 times in a row . Imagine if this was a real test, he will end up with a zero score, lol. Even though Bitcoin is not an altcoin, it is still nice to know that it is already capable of replicating some of those features that we think only possible in the altcoins before such as minting an NFT, smart contract capability, etc... This makes it more reliable than ever.

Altcoins are already there and it is inappropriate if we will just remove them immediately only because of the new version of Bitcoin and as we can see, altcoins still have some nice value's which indicates that many people are used to them already. Bitcoin being the first crypto, making it recognized by the public but there are newer cryptos that are being hyped up and people who are also new in cryptos will hear about them first before Bitcoin.

As we can see, they still have some contribution in the crypto space (which is great), not that they will only come here for the benefits. The stable coins you have there are still part of an altcoin and it's better to already have some altcoins for use with your stable coin to avoid further hassle.