As 343 Industries have stated, these games aren't in any way linked to their original versions.
"It wasn't that fun back on the 360 and it looks less fun now.." - If it's less fun to you, then don't play. No one cares.Wow could you be more antagonistic?
"Like who asked for this?" - Everyone asked for it, except for you.
"And why did you ask for this?" - Because it's remastered, on a different platform, and has provided new ways to unlock armor through seasons, commendations, and rank; bringing people back, instead of letting everyone enter with everything unlocked.
"I already unlocked everything. I don't want to do it again." - Good.
For those of us adults who were old enough to play the original and put in a lot of time and effort unlocking those items there should be a way of at least vastly accelerating the process a second time around. At the very least just check the achievements. If a Reach achievement was unlocked before Reach on TMCC, they should get a permanent 20x accelerator on their account.
As an adult, you should understand that the original still exists with your hard work intact. If you don't want to do it again at a higher frame rate, that's a perfectly logical (and adult, since you value that so much) reason not to.
Yeah, but they could easily check achievements. That's a XBL check they could do without needing access to any other data and that's data they definitely have available to them. Other games have done it as well.
It's still lame to grind so hard and then come back to play it again and none of the progress is there. I mean, half the nostalgia is gone when you remove personal agency from the situation and this isn't like an RPG where the fun in the game is building your character through the story, which necessitates a reset of the character anyway. Also don't know why you have disdain for adults, but let's not get off topic. So yeah, technically Halo: Reach is back, but does it really feel like it? No, because it's not my Halo Reach. Unlike the other games in the Halo series available on TMCC I can't go back to playing my character, my emblem, etc.
I mean, if the "fun" is in the progress, then why not completely reset everyone's unlocks every six months or so?