In other words, when people don't care for speed they use Electron. What part of that indicates that people have no background in algorithm complexity? We have traded off run-time speed against other things for ages -- even in computing science.
Can be... because I'm also a user, and it's frustrating to have the PC bloated by dozens of Electron-based apps using huge amounts of RAM, draining the battery more than necessary, and for part of them, actually slow to use. Perhaps some users don't care because they are either not sensitive to small delays or resource usage, or because they have never seen anything else.
I see also an environmental question arising here. More CPU cycles = more energy used. Makes no difference for applications used by small groups of people, but for software used in millions of copies, I'm wondering how many MWh we are wasting (I wouldn't care much —except for battery life— if energy was only from renewable sources... but it's not the case)