Combat in casual contents is often whatever but also combat is the only thing a lot of casual players do

I feel like this is one reason why discussing combat is often difficult and why we see bizarre takes like complaining about others playing sub-optimally in a leveling dungeon, like people who haven't even finished MSQ chiming in on Savage job balance and fight design? Because casual players, and I think rightfully, have strong feelings about combat too, because that's a large part of the game they play and hopefully enjoy.

One context in which I've been thinking about this is when playing with casual and new players, like I realize sometimes it can actually sound patronizing and dismissive to tell them don't worry it doesn't really matter how well or badly you play?