Have you set Limit Walking in your Pedestrian setting? In my city I've set it as No Walking and I get trams, if I set it ,for example, less than 2 km, I get underground stations instead.
EPM varies in cities , some cities are well covered ,some not enough, You can see coverage on product page at Garmin. Some CXs dont have EPM at all. The latest CNA CXs have been implemented a bit. MMR file is bigger than in the previous version