I'm now puzzled and I think it's the terminology being used. 'Airflow' through the medium, I'm interpreting as use a coarser mix. Peat / gravel / sand or peat / perlite I've found suitable, I've also used pure live sphagnum.The amount of air going through the medium in a pot standing in water I would say was negligible. The plant will root and shoot underwater and there's not a lot of airflow through that.
Leaving the water tray bone dry for 24 hours I would also discount, it's likely to lead to problems. The tray goes dry and it's not noticed for a few days and then you have to allow another day because you have to go by when you noticed and in high summer you have a dry plant. Just keep water in the tray, if it goes dry, add water. My own plants stand in a couple of inches of water from April to December every year. Once from April to December the following year, 20 months without problems.
The best way to avoid problems is to look. It's amazing just how much your plants' health improves if you look at them frequently., the more frequent the better it is.