I personally think it's worse that that. It's not just gold players for a choice of 3. It's 65 players PLUS the gathering of 10 XP cards!
You had to do something to get these, they do have some value.
Make the set cost 10XP +20 gold players => OK
Make the set 85+ => OK
Make the set from 10 where you chose 2 => OK
Make the set Tradable => Meh but yea people could trade in for one they don't have if they all got something they already had...
This is completely wrong but guess what, if you want the reward at 40 collectibles... you will need to do it at some point.
For me it will be after I get Mario/Gretzky. But what a waste.