One of the things some players cannot afford to do is wagering requirements, this is one of the most difficult aspect in gambling or claiming bonuses from gamblers as a condition they have to fulfill, but it also comes with an advantage because once the which are it also gives them an opportunity to be able to win something even higher for the sake of those that are interested to gamble for real,
I think if a gambler has a good opportunity, he should take advantage of it. Since two options are given here, the one that is comparatively easier should be adopted. But yes it totally depends on the mindset of a gambler. Because if he wants to have more fun, he can accept the option of "wagering requirements". Because here bonus money is not guaranteed to win. And 3x means $1500 bet, which is very expensive.
Sometime the motivation is killed by some casinos who set up unrealistic wagering requirements on their bonuses, such a casino already have the motives to keep the players active as long as possible and whatever they win from the bonuses is still subject to the same wagering requirements laws and as gamblers, we have to read all bonuses' terms and conditions before we take them.
This is the reason before you as the gambler whom they have given bonus they should at least try their best to make sure they accept the terms before jumping into swimming into it because at time they wouldn't be that meeting up with their wagering requirements which could keep them to continuous rolling without even meeting up. But this, bitz.io is really doing a wonderful job and also be that fair with their username.