...advice about positive landings to avoid aquaplaning in standing water conditions is now changing...
'taint changing, it never existed. The idea of firm landings to "break through the water layer" has always been an aviation myth. The advice has always been "Whatever you do, don't attempt to stretch the hold-off in order to achieve a smooth touch-down." The purpose of this advice is not to perform a firm touchdown to "break through" anything, just good advice about not wasting runway by extending your hold-off, when you should be on that runway and braking.
The aquaplaning speed is determined by the tyre pressure alone. How you touched down previously is irrevelant.