OK, I'll play.
"The Limitation Act simply doesn’t apply here"
Yes it does.
"because the Premier League isn’t bringing a civil court claim"
Yes it is.
"— it’s enforcing a private contractual rulebook that has no statute of limitations at all."
Yes it does.
"Every club, including Manchester City, agreed that the League can investigate and charge historical breaches without time restriction,"
No they didn't.
" so there’s nothing for City to “invoke” to strike out older allegations."
Yes there is.
"The concealment provisions in the Limitation Act are irrelevant"
No they aren't.
" because they only matter in court proceedings, not in a regulatory process."
No they don't even if this
was a regulatory process, which it isn't. It's a claim for breach of contract.
"The Premier League doesn’t need to prove concealment to justify looking back to 2009 — it only needs to prove the breaches themselves."
They need to show the charges were brought within the limitation period, with all that entails.
You asked "Why"? That's easy. Because I listen to the actual lawyers on here. Unless you tell me you are a lawyer, in which case I may pay more attention, but if you are you must be a bloody awful one.
AI has a lot to answer for these days.