Some people tend to do that, but I'd say it's even more dangerous when most people want to drive around 60-80 if that's the speed limit.
When somebody drives like let's say 40 and speed limit is 60, people behind them have to make a gap and try to gather the speed to 60 in that lane to match the speed on the lane right next to them, so they can switch it.
When pedestrian sees the gap they don't necessarily realize that one car is going slower than others and may try to go between although it is extremely rare. The dangerous part is that other cars are forced to speed to achieve the right speed.
Anyway, the correct answer to your question would be no, because jaywalking in the first place is illegal and dangerous. Pedestrians should acknowledge the speed on-road and weather just like drivers have to. They know that car won't stop immediately, so why would they risk it.