That video was with a circuit board.

For circuit board electronics they are baked on the board in a heated chamber filled with an inert gas which acts like a flux to keep the oxygen out of the solder joints. They are heated a lot more than the 210 degrees boiling water will reach.

Our older stuff was not IC chips but full size resisters and transistors so I would tend to agree with you that they are more heat prone but I think 210 degrees is still below what they see in our old cars in the summer heat.