You’d need to show me on a table. Nothing here suggests low deflection is an advantage.
“Adjusting for deflection, you will miscue” has to be be false since they are not related.
I play with very ld shafts and there are shots I can't pull off (as well) that I can with h.d. shafts.
I'm hoping over time (if I have enough of that left) I will be able to do the same with l.d. shafts.