I've been doing this since I read the OB article. My showering times vary widely, but when I do shower in the morning, it still seems to work fine.

According to the linked article, yes. The critical thing seems to be that the period of time between the application and the bathing where you perspire less, lets the deodorant enter your pores.

So for people who perspire less when they sleep than when they are awake, they should apply deodorant before bed.

Not being one of those people myself, I keep my own counsel on the subject.