It had to do with the date, he wanted the date The Amazing Spider-Man was released, or one year before that, but the studio wanted it sooner, from there it's obvious that they were desperate for a reboot, and when Sam Raimi left he even told them to go on with
the reboot they were already planning. Sam Raimi needed some more time, the studio didn't allow that, the reboot wasn't their last resort, it almost seems like they were more interested in it than Spdier-Man 4.
Uhm, did i talk about quality? No! I said that the Raimi films connected with people, getting something like that rebooted so soon will just make many lose interest. It also doesn't help when even with a bigger budget, i see the general public talking about how fake this new Spider-Man looks.
Look, more generalisation