I fly as long as I'm awake and I must say I agree with both you and the op.
Yes, tourism day (at least in my opinion) is just annoying, it disrupts my internal algorithm that tells me "Yeah fly now" or "wait for like 20 minutes" and I'll either sit these 2 days out or settle for whatever shit is in stock rather than my usual "neat" items
but at the same time, yeah, it IS just 2 days out of 365 and treating tourism day like it's a world changing event is not right in the grand scheme of things. Anyone who travels consistently won't be hurt by tourism day even if they believe it's bad