I don’t have to. You shared the video with nothing else. No call to action, no question(s), no concerns, nothing.
Why did you share this video? You thought this was a solid educational piece on FF didn’t you? That’s the only reason I can think of that fits requesting a counter. So no questions, no research, didn’t even browse the comments, just choked this video down and decided to pass it along. Hell you’re not the first person to run into and post this video, a quick search would show you multiple discussions on it.
The thing is I believe that statement is a bit misunderstood.
Calculators were already becoming pocket sized back in the day, but using it to calculate things if you don’t know how to use it is where the actual problem is.
Hence the reasoning to learn how to math vs only having the device.