I do, it's called variance, assuming whatever he says is correct "which could be" then it's just the result of the huge variance that small pools face, with 1EH worth of hashrate the pool is supposed to hit a block every 4 days, with a small variance in luck, they could hit 2 in a week which makes them lucky and earn a lot more than having mined to other pools, but also, they are subject to hitting only 1 block in a whole week which makes them subject to earning a lot less than miners with the same hashrate on other pools.

You can't cherry-pick a certain period of time and say this pool earns me more than that pool, I did mine for a very short period of time on Kano.is and I made more BTC there than I could have made on the other large pool I used, I made like a dozen more profit because I was just lucky, it's all but variance and luck which eventually evens out across all pools.