BQ25887: Cell Balancing & Power Path Concern

Hi, 

I noticed that BQ25887 has cell-balancing function, which is suitable for 2s cells charging application. But it does not support Power Path Management.

Other devices like BQ25882/3/6 all have System Output. Is there any specific reason about why BQ25887 does not support Power Path Management? 

And MPS has a charger IC (MP2672) with both cell balancing and power path management function, which is P2P with BQ25887. 

My another question is whether we have any charger IC with both cell balancing and power path management function?

( Customer's application: 2s cells in smartphone)

Thanks,

Jenny