^I'd hardly call it scouring the universe since those kind of upgrade scans are just an extension of the experience points. A little extra reward for completing a mission or for exploring the map a little. Since most of them are right there in the story missions it's not exactly easy to miss them.
Unless you're referring to the resource scanning/probing required to actually research the tech, in which case I agree, that needs to go away.
Actually, based on comments made by developers it looks like they're going to change resource back to more or less what it was in ME1. That is actual deposits you find while roaming in your vehicle. The up side to that is that I suspect the open planetary environments will be a lot less "open" and more multi-path affairs like Overlord.