Not only that but these were people who were not already in the country! RIght?
What about couples who applied for a fiance visa at the age of 18, then the age limit changed to 21 after they applied for the Fiance Visa and then when they applied for FLR, and they were still 18 were they then deported? As that would be similar to a couple who apply for a Fiance visa who meet the current regulations but then do not meet them when they apply for the FLR right?