Because EA always forces changes. Not even cream-of-the-crop developers are immune to EA game melding to the bottom line (Bioware). Starbreeze could have said, we want to do a tactical/strategy remake of Syndicate and EA would looked at them and said, 'We think a FPS would be better. Do that, or ... lets see, we might have to start shutting down your dev-house."
Starbreeze is an independent studio though, right? EA owns Bioware, they have a little more pull there.
I kinda figured Starbreeze made a pitch to EA about the Syndicate IP. Seems a little odd that EA would use them otherwise, since they have plenty of other in-house studios to use.
It prob doesn't matter that much who came up with the idea of making it a shooter, but who made it a _shitty_ shooter. If it had been a great fun shooter, it probably would have sold.
The game played like something from 1-2 decades ago, and that's actually something I noticed in other Starbreeze Studio games, too. They seem a bit stuck in the past.
I stopped the single player campaign after some hours, I found it unbearable. From what I heard, the strengths of the game are apparently in coop. I know some guildies played coop, but they stopped quite quickly, too, so that's prob not enough to save the game, either.