Actually CSPRNGs are slightly worse if you are more worried about distribution than predictability (he mentions this in the article). If you are using it in a c

Actually CSPRNGs are slightly worse if you are more worried about distribution than predictability (he mentions this in the article). If you are using it in a context where a hostile attacker cannot gain anything via predicting or manipulating the generated numbers, then for birthday-paradox type resistance an alternate non-CS PRNG, like those typically used for simulations, is more appropriate. However when you're using JavaScript, it's likely the natively implemented CSPRNG will be faster than a custom "faster" PRNG implemented in JavaScript.