Olsen wanted a national system of hand-counted paper ballots, the sources said, a frequent Trump demand some election-security experts say would be less accurate and potentially riskier than the current system of machines with auditable paper trails that almost all cities and states use. (emphasis mine)

That's exactly why they want it.

This whole thing is a fraud. Trump and the Republicans oppose the current system because they can't rig the vote, and they want to switch to one that they can rig.