Well if the future of Nintendo is decided by people who lower their standards gen after gen then I fear that you might be right: There may never be a home system by that company again. Also the rest of the industry seems to steer towards norms (1080p, 4K, 60fps etc.) It seems strange to me that Nintendo is the only one that does not go that way. It's of course good news for the company as it means no need to invest money in advancing components and technology, just work on different concepts and voilà, people will flock to you. But as a consumer who wants a decent product, I am not too happy about this turn of events.
I'll cross fingers and hope one day to play BOTW on some future home system that will do justice to the new generations of televisions but if not then, I will have to send my divorce papers for Nintendo to sign them
I don't think it's so much a matter of lower standards but rather of different standards. A lot of people simply don't mind if a game is 1080p, 900p, or 4K, so long as it is fun. Gameplay is more important than pixel count for many.
It's strange you point out 60fps though, as Nintendo is actually pushing this standard far more than Sony or Microsoft; the majority of their first party titles are 60fps, while most big Playstation and Xbox titles run at 30fps.