People are talking about Merlin like it's some cake stall at a church jumble sale.
These are unprecedented times, but Merlin is owned by organisations that collectively have in excess of £500bn of assets. They decided it was worth backing prior to Covid, it would seem odd to me that they would be quick to write it off so soon after - the corporate world doesn't tend to work like that.
The three way income split (NA, Europe & AP) will help them over time.
Will there be challenges? Sure. Are they insurmountable? I suspect not.
~$3bn of that is due to going private. That said, it's very structured and won't cause problems for a while, for that reason.