that's my understanding, yes. Before my DH and I got married he called his attorney and asked all of these questions because the "what if's" concerned me. Could his ex try for more because of my income or if I got an inheritance, etc . If he wins the lottery, it's considered "winnings" which are not normal income. And I'm sorry, but if that woman is getting $ 3,000 a month in child support, that is hardly "a token amount " that he's paying.
People forget that sometimes the ex is extremely greedy. It's not always the case where the men are crap. Trust me, my DH gives pays his fair share in child support but what people also don't account for, is that we also pay 100% of daycare when she is in our care, 100% of clothing and food costs for her at our home, 100% of supplies that she needs (for whatever). WE don't get half of that nor do we get to deduct that from child support. In our case, she moved in order to drastically lower her expenses. She uses the money on herself, not on my step daughter. It's extremely upsetting. Just because this man wins a lottery or gets an inheritance does not make it fair game for the ex to demand. This is NOT what he earned from his income from work. Child support is a % of your earned income.