I'm in the same situation. I've been playing since wave 3 but I'm just walking away. These last three waves have crushed my spirits.
Only FFG can fix it and they don't want to and probably don't have the experience or knowledge of how to.
There is no good advice in this thread, none that will convince him. SFs aren't the answer, they fly in irons. Epic isn't the answer, it's long and clunky.
The only answers are ship and pilot ban lists. FFG needs to change back to what made the empire great in waves 1-3. FFG needs to prune the game and they aren't going to do it.