Rebranding takes lots of effort, but it seems to be work-in-progress - admittedly it's bad now as one can easily start up electron-cash, forget about it, and later believe it's actually electrum running - or vice-versa - but anyway, I would give the electron-cash dudes some slack here. The improper rebranding is obviously not due to bad faith. As for me, electron-cash seems to be the easiest way for me to move my bitcoin cash to the exchanges post-fork.