Is a supplemental, SUB HOA technically covered as part of the Master Declaration?

I live in a neighborhood with several sub-hoa's. Each with "Supplemental" Declaration, and their own AoI, Bylaws, and EIN.

Each sub-Declaration generally points to the Master CCR and then has like 2 extra rules about fencing.

The Master CCR has a section in it about Amendments, saying "no amendment to CCR can add restrictions that restricts a Member's previously enjoyed rights and uses of their property."

My question: Can the sub-HOA's amend their sub-CCR's to really ratchet down the CCR's, adding all sorts of new restrictions? Is the sub-CCR technically part of the Master CCR and thus part of the master CCR statement about a 1-way street, or is the sub-CCR technically a separate and independent thing?

I would need to see at least the exact wording of the sub-Declaration and Declaration, on the subject of what is controlling and when, to opine on this.

Are you certain that the Sub's declaration does not have wording like the Master's, regarding more restrictive covenants?

An attorney would want to read the entire Master and Sub Declaration and more, to opine. Understandably.

One caution right now: Nationwide and when the stakes are high for a particular restriction, the chances of a court rejecting an amendment that is more restrictive are good. Grandfathering may be a work-around for this.

Can you confirm the Alaska Uniform Common Interest Ownership Act applies to your HOA? I see it applies to post 1985 HOAs, with some caveats.