It's fine from the point of view of the child; bed at 9.30 up at 8.30 is no different from bed at 7.30 up at 6.30 which is what my two year old does.
It's probably not fine from your perspective if your wife is going to bed soon after her daughter and you're not getting any adult time. I assume you go to bed lateish if you don't have to get up till 8.30, and are getting alone time, so am I right that the issue is couple time?
But, if your wife works, I can see that she is disclined to shift to an early bedtime, depending on her hours. Until recently I was getting home at 6.30 which meant basically walking in, having dinner, bath, bedtime, and not seeing my daughter again till the next day. When she was younger (until 14 months) she had a bedtime like yours, which meant I got some proper play time and reading books and things with her. Also meant we could take her to parties at weekends and stay for a reasonable time. And my husband, then a SAHD and never a morning person, got to lie in.
My problem was just that I had to get up early, so by the time she went to bed, I had maybe an hour to do chores and relax before going to bed myself, and that took a toll in the long run.
So, long story short, this is about balancing your wife's lifestyle needs and yours, it's not really about the child.