Don't think that was true of the Last of Us or Halo MCC so...
True, but Naughty Dog worked on The Last of Us Remastered because it helped them cut their teeth on the PS4 hardware without having to start from scratch. It didn't hinder them from developing Uncharted 4, it more than likely helped the team produce the game we're seeing right now, at the level that they are doing.
Remasters just aren't a bad thing for the industry at all. They aren't being made for the folks that have beat them a dozen times and have a shiny platinum trophy on their PS3's. They're making them for all of the new folks that didn't own a PS2 or PS3, and missed out on a ton of stuff.
I'm not the biggest Xbox fan, but I owned an Xbox and a 360. Even so, I missed out on a lot of games, especially when my 360 died. When I get an Xbox ONE eventually, it's going to be great to be able to pick up remasters, or play some older games on the system in between waiting for the new titles to finish production.
And then there are just some games I adore from the last few generations that I want to play on my shiny new hardware. Considering how good The Last of Us and God of War 3 remastered are on the PS4, I have to say I prefer playing this older games with rock solid frame rates and improved/enhanced visuals and controls (Playing PS3 games with the Dual Shock 4 is almost most price of admission alone, considering how much of a step up that controller is to the DS3).