Here I have discovered an inconsistency. While there is no direct rule how it should look when we speak about the alignment of half-note to whole-note noteheads (I prefer definitely centered!), I think here is a multiple inconsistency:
Measure 1: tone E is centered, while tone B is right-aligned.
Measure 2: with swapped voices, tone B is centered, tone E is left-aligned.
I recommend to use centered for all noteheads.