The manufacturer (LG) would first need to develop an update that has fixed in these. Then go through all the needed certifications here in the USA, the carrier would need to test it and then it could be released. Typically tablets don't get updated all that often. Samsung had been doing okay with keeping phones updated but not so much with their tablets. It all starts with the manufacturer. If they don't go through that process, there is nothing for T-Mobile to release.
Theartiszan is correct as he so often is!
If you have any other questions, please don't hesitate to ask.