No problem at all, this was just told in the MM recipe commenting systemd confuguration variable that was set to inhibit starting service at boot (below). # no need to start on boot - dbus will start on demand SYSTEMD_AUTO_ENABLE = "disable"
Naturally this is in MM recipe - and most likely some patching needs to be done before I can get this modem up and running. So fixing this variable setting is very trivial.