Good point on discount. 10% is not big number, but defintily on a double digit contract can be decent saving. I think this rule is good as is.
One nice thing with our leagur overall is we really don't need a rule change. Good active GMS and stable rules keeps us competive. Plenty of teams can win it this year.
Regarding this particular rule on 2nd tag, will let this sit for a bit and see if there is more feedback before deciding.