Consider all the flaws in bitcoin at protocol level.
Bitcoin does not scale!
Bitcoin is not anonymous!
Bitcoin is a privacy risk!
Bitcoin is too slow for real world applications!
Bitcoin does not allow much more than just fake fantasy money unlike many smart dynamic blockchains!
Bitcoin is mostly owned and controlled by a hand full of people!
Bitcoin makes you suspect of illegal activities!
With few exceptions, the same can be said about fiat currencies.
When I first read his post, I had to agree with him. Though I'm a bitcoin user, so I will still use it. Now your comment is also completely true. To be honest, both are true