Tape vs split loom

It's ok most of my tracks are side tracks. I was also looking at this
That approach - eliminating the weak connection at the bulkhead - is totally legit. How it was executed can be quibbled over. Going straight through, with a grommet, IMO is the best. Tap connects like the type mentioned are amongst the poorer connection methods in my opinion.
One point of misunderstanding in that article. The fusible link, or any fuse/breaker is not sized based on the power source. It needs to based on the downstream wiring; and the wiring is based on the loads.