I do not like "switching" power supplies, switchnig are good for playstation or others commercial products, I have a feeling that they inject more spurious than quality, but mine are just ideas not substantiated by concrete facts.
If the engineers of Matsushita have decided for this type of power will have their good reasons, I do not think it’s just for greater material savings = greater gain .... in hi-end products is not tolerated to reason to economize.
If we analyze other examples, Linn in 1998 put on the market the CD 12 top-of-the-line player, which cost thousands and thousand of dollars and had "switching" power supply inside; in 2018 Naim produces separate power supplies with traditional components to make up-grading of its products from the cost even in these cases of thousands of dollars.
Every IHMO manufacturer has its own thinking on how to make the power supplies .... buyers should think only to hear and understand if improvements over old machines are audible instead of worrying about the technical performances.