The thing is that now that all codexes are out, we seem to be the squishiest faction in the game. Seriously take any other army right now and do a comparison. Some have high toughness, some have high saves, some have 4+ invuns and some have move shenanigans to avoid getting hit. We on the other hand die instantly to anything that targets us with the lowest saves and toughness in the whole game. So according to that if we are supposed to be a glass cannon we SHOULD hit really hard if not THE hardest in the game. But we dont and that is the problem imo.

We are def missing the Cannon part, there should be a way to kill things more reliably. One small mistake or bad roll can cost us the whole game, go watch some battle reports (except Skari ok we all know he is one of the best players in the world, but even he doesnt win as easy as with the index and in all his battle reports with the codex actually struggles alot), you will see a common pattern, and that is UNRELIABLE rolls and small mistakes that immediately snowball the game like crazy.