I mean, not really. If it's a true remaster, meaning they rescanned the original film or dug up the original HD renders, it's a genuine improvement in resolution and quality. Such remasters, when bought as BluRays, are the highest quality versions of media you can get as consumers, since streamed movies are compressed to save bandwidth (especially when they're 4K).
But not this "upscaled" bullshit. If I wanted my 480p movie upscaled, I'd do it myself and not pay premium prices for the same thing.