You should not keep this setting. Your connect script should check “wda-get-data-format” and enable raw_ip framing if necessary. That way it will work regardless of modem.
The most recent version of the GobiNet does this a bit smarter, since it can: It automatically selects the proper framing. It can do this because it is responsible for configuring the data format used by the firmware too. With qmi_wwan, this is left for userspace like all the rest of QMI. Which is why we also have to leave the host side framing selection to userspace. The driver has no knowledge of the firmware configuration. Only userspace knows.
But all that means is the task of syncronizing host and device framing is left to the userspace tools, like for example your connection script.