When they still have 25% water it can still look completely dry. That's what we mean. If you look at the status it can still have some water.

But it really doesn't matter. I almost never watered them in months of doing this and if the plants can die somehow, then I've never witnessed it happen. It's that difficult to fail to water them for 3 days. The chances of it not raining for 3 days are very low.