For a Dell, HP, or other multinational conglomerate who gets new chipsets in advance from Intel and always has a dozen or more models on the never ending merry-go-round of 'hype the new, dump last seasons at Costco on the people who don't know any better', no, it's not unreasonable.
For a small batch manufacturer who's been shipping laptops less then a year and is still effectively on their first model release? All in the middle of a pandemic induced supply chain fiasco?
It kind of is.