Why is the Child Care Expense amount credited to my spouse who has a higher income?

My wife's income is approximately $2000 higher than mine, once the Universal Child Care Benefit gets added to my employement income. I answer "No" to the question "Does the taxpayer with the higher net income qualify to make the child care claim on their tax return?" but the credit shows up on her return and not mine. Am I interpreting something incorrectly? Shouldn't the credit show up on my return as I am the lower income earner?