Runsick
I have to call PNF to activate SEC FPL or at least crosscheck what he is doing, this requires attention.
Many years ago I started with very old turbo-prop with little automation capable only to maintain constant altitude, so making visual approach was very easy - just look outside and fly.
Almost same applies for 737-200. Next one, 737CL offers some opportunities by FMC to facilitate visual approach constructing some reference waypoints, crosstracks etc. This is very useful but involves programming computer first, ant this may be quite time consuming, especially when done by low experienced pilot.
Finally on 320 pushing buttons is unavoidable time investment.
Perhaps it's old discussion, off-top and wasting time to read.
Perhaps I'm only one here experiencing difficulties on transition from B to A.
That fatal approach, as I can understand from report, was not planned nor executed in proper way. And just very small inconsistencies and A features further aggravated situation up to fatal result. IMHO