I agree they should change it to say that the card can be used to expand data, pic, memory storage, but not to store apps. If you tried to win a case in court that they lied however, I think you'd have a tough time, because the memory is expandable, just not for apps.
Good grief. I have a ZTE AWE, an entry level Android. It has 4GB of Flash. I'll say it again. It has the typical Android load, including Chrome, Maps, Search, etc. I put maybe a dozen more apps on it, they were typically 5MB - 20MB. It now has ~650MB *total* in apps and still shows 1.3GB free.
Assuming that what you say is true, that the Tmobile only has 600MB free out of the box, then it's not the phone's fault. It's that Tmobile screwed the pooch. The reviewers didn't review Tmobile's load, they reviewed the phone in general.
Note the 1.69GB free. That is very consistent with my experience. The similar Android sitting on my desk has the dozen or so apps that I've added and it still shows 1.3GB free. That's consistent with the above review. So, if Tmobile is filling it with some crapware, that reduces theirs to only 600MB, then it appears to be a Tmobile specific issue, not an issue with the LG phone itself.
Who says that half the 1.69GB is already used up? The similar Android here on my desk says it has 1.3GB free.
What exactly they mean by 1.8GB available to the user isn't clear. I sure sounds like they mean it's really available on the phones they are reviewing. To figure out what is available on each companies phone someone would have to buy each phone from each carrier, etc. And then change it once a week when apps get updated and the sizes change. Or, if it really is of critical importance to you, you could turn on the phone and check before you buy it.
The problem
Are you sure that's an LG issue? I thought it was an Android OS issue. In fact, wasn't it possible in the past and then they changed it? You may have a more legitimate FTC issue with Google, if you can show they did that for some nefarious restraint of trade issue, as opposed to for legitimate technical reasons.
Again, they were reviewing the entry level LG phone, not Tmobile's screwed implementation, assuming that what you say about Tmobile here is true. The phone is likely fine. I have an almost identical ZTE Awe, identical memory specs, the reviews of it were similar to what you see there and I'm very happy with it.