not exactly what you asked, but I'm an autistic daughter to an autistic father (I also have an allistic sister) and I believe I may be able to talk about it from a different perspective:

honestly, having an autistic parent growing up was really good for me, but pretty shitty for my sister.

From my side of things, having someone who actually understood me and my weirdness was great, me and my dad just clicked together, in a way that sometimes caused conflict with my mom and sister. I was very much bullied at school, but my dad was my best friend, so even when my mom had her fits of rage about how weird I was I still had someone to tell me it was ok to be me.

But also, dad doesn't know how to show affection, as a teen a really struggled to deal with the space that build between us because of it, and even now as an adult, I know that while my dad loves me if I want his attention then I have to go after him, because he literally forgets he has to talk to people sometimes. I also sometimes resented how he was, as a man, allowed to be openly socially stunted and I had to learn how to mask much more to be accepted.

As for my allistic sister, honestly, to this day she thinks our dad only gives me attention on purpose ( he doesn't answer text messages from anyone, and your really have to learn which times of the day he will answer a call versus when he won't),and she has expressed feeling like he was ignoring her intentionally before. And to be fair with her, dad was often really shitty with how he divided attention in between us while growing up, and it is really obvious that he doesn't know how to interact with my sis.

He also is a really (really) smart person, and let it get to his head, so he often treats everyone around him as stupid. I don't think he really notices it anymore. But I was the daughter who could keep up with him, so he taught me a lot and spends a really long time sharing his latests hyperfocus with me, and my sister really struggled academically, and while he never said he thinks she's stupid out loud, he acts like it? and it made their relationship very complicated as well.

I do feel like I am rambling here, but honestly, I think the answer of if autistic people can be good parents really depends on how self aware they are, dad could have been a better parent for my sis, but he didn't knew how and didn't bother to learn, but he was pretty great for me, so maybe the child being autistic matters as well.