There is an unlockable mode in the original game that gives you infinite time to play around with and disables the timer sensitive gameplay while adding it's own unique challenges. Play that instead of messing up the main mode.
What's wrong with adding a toggle to the main story, though? That doesn't detract from the experience of people who want to play the game as it was originally designed, but also lets people who want the game to be less strenuous to play the game their way.
Like I said, choice is good. I don't want to take anything away from the people that like the way Dead Rising 1 is, I just want more accessibility
options to be added to the game.
Then play a different game if you don't want Dead Rising to be, well, Dead Rising. That's all I'm saying.
But I don't want to. I want to play Dead Rising but with the option to remove the parts I don't like. And Capcom is very clearly inclined to provide that experience, considering the fact that they made the time limit optional for Dead Rising 3 and seemingly removed it altogether for Dead Rising 4.
I don't see why they couldn't do it again for a Dead Rising remaster. Capcom is no stranger to going above and beyond the call of duty on remasters like this. Being this staunchly against the idea of adding a timer toggle to DR1 is like being strongly opposed to adding Vergil to DMC4:SE because you think Dante/Nero is
the only way the game should ever be experienced.