Ouch. I like that you can still earn some VP for completing an LFR wing, as well as keep earning the Sigils if you need them for the legendary on boss completions after the first for the current week, but I'd agree that being shown a tier token that you can't have is rough.
Personally, I think offering the bag of gold drop on all subsequent boss drops in an LFR run per week would be sensible, and on the first roll attempt per boss, if you don't win gear or a token, you ought to get some VP and/or JP. It stings a bit when you drop a bunch of bosses in LFR and don't see anything but gold, but that eases a bit if you get points that still count towards gear progression. You used to get 250VP for completing each wing of DS in T13, whereas you only get 90VP on the first run and 45 each successive one.
If you had the opportunity to get, say, 1-15VP per boss at random in the bag (perhaps with less or instead of gold) on the first kill of each boss per week (in addition to the small chance you get at mount / pet drops, etc), you'd still get some currency towards progression or upgrades, while encouraging folks to down each raid once a week, though they can keep running for that 45 VP if they want to.
Alternatively, since there are plenty of other sources of gold in the game, I'd prefer being able to keep looting on an LFR boss until you win a drop from them that week, and THEN you're locked out of loot until next week (and give up getting gold drops). That would keep some incentive to keep running if you really want to, and allow LFR gearing to go a bit quicker; when you move up to normal / heroics, the current rules then apply for raid lockouts, so gearing is slower at that point, but you're likely in a more cohesive group that hands out loot more democratically.