And as a parish councillor I can confirm how difficult itmis to obtain a penny of developers CIL cash from the district councils hands in order for us to spend it on qualifying infrastructure. They've a raft of regulations and rules to navigate, few of them with a foundation in any law, just to makemit as difficult as possible. Its criminal, really, possibly literally.
Sadly probably not criminal: Community Infrastructure Levy was brought in shortly before Localism, so your elected district councillors have pretty wide ability to set whatever conditions that they like on CIL payout. Those conditions don't have to have any foundation in law. They only need not to break any laws, which is a far lower bar.
As long as they do that, if your community doesn't like how little infrastructure they get to support all the new homes, then it's the fault of the entire district for electing those councillors, but good luck getting enough people to vote in local elections on local issues and commitments about something as niche as CIL, rather than what they think of the current PM or MPs.
It could be worse. Your district could have re-imposed minimum parking requirements in 2022 like Norfolk did, which has strangled new businesses in the villages (no new business can afford the land for its shop's car park, nor the distance that puts it away from neighbouring shops and passing customers) without doing anything to reduce pavement parking. Why be surprised they're farking up other community infrastructure too?