Not sure if this has been explained properly, but I'll give it a go.
Band 1: Pick straight after 1st rounder (If you had pick 12, AFL gives pick 13)
Band 2: End of 1st Round (Pick 19 onwards depending how many are given out)
Band 3: Pick straight after 2nd rounder etc.
When Franklin went to Sydney, the Hawks won the premiership. Band 1 and 2 were therefore both Pick 19. If Hawthorn come last, they would've received pick 2 for Franklin on top of pick 1 from their ladder position.
Now, this year there are 17 1st rounders tied to finishing position due to GWS/Whitfield saga. Brisbane got pick 18 for Rockliff (Band 2, lowest placed side), followed by Geelong getting 19 (Band 2, next ranked side).
Is it fair that Franklin = Motlop due to both going for Pick 19? No. But those are the rules.
Those are or were the rules sure. But as I said you would think the fat cats at AFL house who are getting paid stupid amounts of money to administer the game would find the time to run a logic test over a couple of scenarios to see if their "formula" passed the basic sniff test.
Because to date they have run a root of this fa compo system. That and the match reveiw system are a shambles. They act more like politicians spending more time spinning crap or sweeping things under the carpet you really do have to wonder what is going on.