It's standard to give hard credit to the constituent who made a payment (eg a donor advised fund, workplace giving program) and soft credit to the individuals who directed that payment through that third-party.
However data entry can be inconsistent, and if you realized you (or your predecessors) were doing this backwards it can be painstaking to update all the past donations to make sure the right constituent is getting the hard and soft credits.
Providing a more efficient way to swith the hard and soft credits could make those clean up projects go faster.