Part of the Pre-Wrath view is that the Seven Bowls take place over a short peirod of time, a month tops.
The reason that's illogical is mostly because of the 2nd and 3rd Bowls. It will take a long time for the full effect of turning the world's Water into Blood to be felt. Today lots of people are storing up Water to prepare for a future calamity.
And even in Ancient Egypt, well over a month clearly happened from the first Plague till when God's judgment on Egypt was over.