Thanks for the suggestion. Could you advise what the use case would be for a 2.5G SFP port? The primary use case for 2.5G is WiFi-6 Access Points which require PoE which won't be possible with an optic.
The optic that you referenced is asymmetric 1.5G TX/2.5G RX and outside of PON applications so could not be used in ethernet applications such as on the 7250.
The primary use case would be FTTP/FTTH/FTTB installs for small business, home business, home lab, etc. to reduce hardware and the associated maintenance and utility costs.
The modules are not much different from an Access Point. They're more than just a conduit like typical optics since they have an embedded SoC with OS and ethernet layer for triple play VLANS, but at the same time are limited, which is where an L3 switch can expand on. In the case of the linked module, it's running OpenWRT linux and provides all the conveniences. The capacity is tied end to end.
This is how the LAN/SFP end of the module can be configured.