One reason for the decline is there being less consoles to track the sales of. Now there's only three relevant systems when 15 years ago there were five to discuss. Also with Playstation being the clear winner again between Playstation and Xbox if the Switch 2 is just a standard successor that does well things will be quite static since the next few years will be pretty similar to the past several in terms of the state of the market but this time less intrigue and debate over Nintendo resulting in less discussion.