The main problem with running the output wire to the battery, is that is is then subject to a more possible failures then it would be at the starter..
You run the risk of corrosion, and corrosion traveling up the wire (until it becomes unusable) Where as a Battery cable is a bolt on replacement, you now must remove and replace the wire..within the harness..It also becomes more prone to "becoming loose" as the cables are removed, cleaned , or the vehicle is worked on..Butt Splice Stub~outs are a nightmare also..
PLUS you really don't want a fuse link that close to a gassing battery..
The Starter location is one that has proved well over the years..and I advocate it..At best if it must be relocated..do so to a single terminal binding post at or near the battery, and make all your junctions there.
You'll have a better system..