Many people don't understand how bitcoin was as of that time so when they heard that someone like Laszlo Hanyecz used 10 thousand bitcoin to buy 2 pizza as for then, the money is too big to buy the pizza. They have not considered how much was bitcoin as of then. They always thought of the present price of bitcoin. Therefore, using bitcoin to buy someone is different from what has been used in those years. Because in those days bitcoin was growing and now bitcoin is expanding to all corners in the world. So if I use bitcoin bitcoin to buy something in my area, I will feel happy.
They should have make more research about Bitcoin and the story rather than saying something without full support and I think that's why they don't understand how Bitcoin was at that time. That's just prove that they only know the story about a person who bought a pizza with 10k of Bitcoin and didn't even think about that it was before and right now is a different story since the BTC price is volatile which means it is changing time after time.