You are in similar boat to me.
My parents are fantastic. They came round straight away when dh needed an ambulance and sat with the kids.
Dhs parents moved 2.5 hours drive away last year. They have four bedrooms but won't put beds so no one can stay so it's five hours in a car to see them. On top of this mil makes digs that ds must be autistic because he is more lively than dd was.
I actually don't resent them. My mum and dad are great. If pil lived round the corner, it would drive me insane. They aren't that interested in my kids so I don't have to bother with them that much.
Suits me fine. I don't get on at dh about it because I know he is hurt and angry with them.
I did say something about the digs as ds is now hearing it and i don't like it. She got me a book on how to handle kids with autism for Christmas. He does now put his foot down when she starts. But we still don't go down the 'why don't they give a shit route'.
Dh resents his mum because she wasn't a great a mum either. Not awful but wouldn't ever do anything if it wasn't her type of thing. He got endless knitting sets for Christmas so he could sit quietly and learn how to knit.
On the other hand my mum and dad do even more for dbro and sil and they don't appreciate it all. Sil thinks nothing of cancelling mums visits if mum won't call in sick at work to help them out. Not talking emergencies, talking about weekends away etc.
Sils parents don't help her at all and she has ended up resenting my mum and dad and me for it.
I would rather not give a fuck about my pil than end up like sil who is full of resentment.