I think the thing that all this talk about scoring rates and how they are speeding up misses is that it doesn't tend to be teams running out of time, it's conditions that normally make scoring 400+ so difficult. A 5th day cricket pitch will still be a 5th day cricket pitch no matter how fast you score. They tend to be very difficult to bat on, it's that which makes chasing big totals so difficult I would suggest.
I think the thing that all this talk about scoring rates and how they are speeding up misses is that it doesn't tend to be teams running out of time, it's conditions that normally make scoring 400+ so difficult. A 5th day cricket pitch will still be a 5th day cricket pitch no matter how fast you score. They tend to be very difficult to bat on, it's that which makes chasing big totals so difficult I would suggest.