I think he only meant the delay on withdrawal makes some gamblers impatient and play more until they lose everything. This is the classical gambling mistakes when player is on profit since they are still confident that they will winning.
The failure on 2FA is just 1 of many reason on why players being impatient. Most popular reason is due to stuck withdrawal because support is very slow to approve.
I wonder if that streamer will request a compensation for that 2FA error. That minor error is crucial on gambler.

I don't understand how delay in withdrawal will encourage a gambler to continue gambling more because if he is serious to withdraw his funds from the casino, he will do that without thinking twice. Only if the gambler is greedy and wants to make more profits.
I had this experience before and I was tempted to gamble because I couldn't with money immediately, but my instincts told me that I will lose it back to the casino which I followed my instincts and controlled myself. However, I already had plans for the money which was why I was able to overcome the temptation.
The casino wouldn't compensate him because he couldn't control himself, assuming he wins, will be give extra funds to the casino, No!