When you use Electrum the light way, you leak all of your addresses to third party servers, which eliminates the privacy you would have gained from coinjoining.
I know that someone is already working to make a PR to Electrum to prevent automatic polling of addresses and enable poll control, which might solve the issue (-> it can easily be patched to not leak addresses to third parties), however, it doesn't mean I'm speficially interested for WabiSabi to be implemented in Electrum.
That's not really the heart of the discussion here. Electrum was more an example of how a client can be lightweight and functional, just an example of how an ideal client for WabiSabi could be, not a form of necessary client for WabiSabi.
To be clear, I would like to see it in any lightweight client form.
The WabiSabi protocol is meant as a replacement upgrade for the Zerolink protocol, JoinMarket is a unique design that existed before both of these.
Alright, but my question was, is there any technical reason why they are never forked to support WabiSabi? I don't see how your statement could be used as an answer here.