My stock answer to things like this is about to become “If you don’t like it contribute to fixing it yourself”. This is how a Community distribution is supposed to work.
If you paid attention you would know that the issue of “Install” on the Lx 3.02 ISO not working was talked about and worked on for the last 3 weeks of development. It wasn’t fixed. Why? Because we don’t have anyone that knows how to fix it at this time.
Also it does work in a lot of circumstances it only doesn’t work sometimes in some circumstances. Problems like this are vastly harder to diagnose than things that don’t work 100% of the time.
So if you don’t like and want it fixed be proactive and contribute to fixing it yourself. Colin (itchka) is leading the effort on trying to fix this. I suggest you contact him and and ask how you can contribute to helping get this fixed.