Well... In LOTR lcg I use those extra cards as on backround of home made scenario cards, so they are not completey useles, but yeah.. More evenly distributed cards would be nice or then there sould be some deck building rules where some cards can only be ones, in the deck and some other more times. So one icon would mean one in deck, and two icons two in deck, three incons three in deck and so on... If only starter distribution would be the same. But that would be too good to be true... would it?
For example, if Gandalf would have had "only one is allowed per deck" mark, it would have been just fine, to have only one starter set... and so on... Or maybe "two allowed" would have been better, because one core set was mean to be two player set. But when the rules says that there is 3 card limit in each deck, It makes game balancing harder, because now some player groups have one Gandalf in deck and other have three. It is like putting Range Rower, and Nissan micra in the same ofroad race... other has no change of surviving the race trough!