To be fair, I cannot remember if “engine” or “truck“ was used in the transmission. I am not in the fire profession, and probably confused the two. In regards to your frustration with the word “surge”, I don’t think they were choosing a word based on media/social media buzz words. I also don’t think the vast majority of people associate the word “surge” with engine hydraulics. I will say, however, that I would assume most people watching the official updates, can come to a conclusion of what surge means when they are explaining it in operational briefings.