We remember Split Second, but most don't. And that would be the same for P2 without the rest of the franchise carrying it.
The biggest problem is nothing actually happens.
I mean, lots of
stuff happens, but it's lacking any kind of real underlying theme or development.
Harrigan learns nothing. He never has to change or adapt. Standing on a rooftop does not count.
The situation never really develops - there's never a sense that things are going anywhere, or that the situation is escalating.
And then it ends.
So while it's plenty big and loud and full of glorious schlock and scenery chewing and excess, there's no substance, and so it always feels that bit empty.
That's how I see it anyway.