Comment 8 for bug 1536665

@Łukasz
Some tablet has SIM card reader, but some options, normally dialer, are deactivate by telephony company.
And sometimes , tablets and phones are blocked for use only with the company where you buy them, until you liberate the device.
If device not use SIM cards, maybe you will add to system something for disable (hide) them.
Other option is no install, and add later through something like ppa's. This way, you can release updates without launch new OTAs (hey, can you do that for security updates of things like kernel?).

Besides, try to understand my point of view as user:
I'm worried, because If you create custom tarballs for each device, what will happend with OTAs?
When you will have 30 or 50 custom tarballs, you will need time to test each one, and then the OTAs release time will be of 8, 12 or even more weeks.
Let's see the possible tarballs for same device in their different models
(take in mind, I don't know if same device but with different screen size (like maybe BQ E4.5 and BQ E5), or if 3G, 4G and next 5G version, use the same tarball):
-1 for Wifi and SIM card model.
-1 for Wifi only model (without SIM card).
-¿1 for SIM card only model? (i don't know if exist devices with SIM card and without Wifi).
Add to this:
-1 version for each model blocked (no liberate) by telephony company.
-1 version for each free or liberate model, but customized by telephony company.