Yeah maybe. Most electronic parts in the engine bay are resistant to a little water, so a mist wouldn't do any harm. However, I just wouldn't take the risk.
See in a hot and humid country like Sri Lanka, if the engine is warm and if a sudden mist of cold water settles on the engine, condensation can build up inside the components (say the engine fuse box for example, which is hollow, and even small sensors for that matter). This condensation can drip onto components and damage them.
It's also important to know what's in the engine bay when you're pressure washing it. Like I said before, on the Lancer EX (basically all 10th generation Lancers), the main ECU is in the engine bay. And I personally am not comfortable with any water being close to it. Some engine bays are totally shielded with plastic covers and these could probably fair a lot well with a bit of water splash.
This is all due to all the complex electronics on modern cars. I remember none of this mattered on my 1979 Lancer. After pressure washing the engine, if the car doesn't start, cleaning the distributor is all that was necessary.