Ganon does have to think about it, and react with great precision against some chars / DI / %. The perfect turn around, dash JC grab on Spacies for example: at least in Melee I know he had to be super crazy tight on execution to regrab Spacies at low % if they DI behind him. If you DI in front of him, you generally escape the CG earlier (some chars it's better to DI behind him at low % like Falcon, not sure if Ganon gets a regrab under 10%). It may give a free hit, but eating a free hit at 30-50% from Ganon probably isn't the end of the world (not every char can escape his clutches that early). Eating an Utilt/Uair/Tipper Fsmash from Marth after his Uthrow CG is "truly" over and not guaranteed, that's arguably worse for the other character to deal with cause Marth is better equipped to have the ability to keep converting or keep his edge after the initial freebie hit (on vulnerable CG chars at least).
On chars like Lucas, MK, Diddy, Roy, etc it seems pretty brain dead. I don't have much against that argument for that general grouping of chars, cause they are tasty weight and FF status for his Dthrow.
The problem with trying to make it 80:20 or 70:30, is that assuming the player is good enough, they can probably turn it back into 100:0 anyways. M2K or PP off of throws still generate amazing results despite what's needed from Marth. If you make it easier for Ganon to grab, but turn his reactions and executions towards Marth's direction, you might have an even worse scenario where the Ganon player deals with that change, and is then blessed with a better grab range or easier grab setups. That just leads to basically the same thing happening now, except you buffed how easy it is to land or initiate the grab. I dunno if that would really be an improvement.
