This reminds me of the "keep the dirt cheap season passes because I don't have a lot of money and live across the road and want to be able to pop in and out and ride £multimillion coasters as much as I like and sod everyone else" debate.
What Merlin do with/about AT's profits/losses is a separate debate from what is being suggested. If this was a flow chart, the first question would be whether they are making money or not. If the answer is No, kiss goodbye to investment in theming, opening hours, events, restaurants, accommodation, operations and new attractions. Operating the park anywhere near full capacity on off peak days during a distribution and recruitment crisis (or any year for that matter) is absolute business suicide.