I think this is a good point, and it suggests why there might not be a price cut this year. It depends on how many Switches they are able to manufacture. It they feel supplies are good then they will probably cut the price. But remember in 2017 there was a shortage on Tegra chips. If that happens again, then Nintendo is not going to cut the price this year.
Switch entering its 3rd year on market, they are past any kind possible shortages, and we can actualy expecting some kind of revision this year too, also price cut this year is almost certaing thing in any case (through revision or through current model).