i think its generational thing. The younger of us grew up with video games and youtube's "how do make the best mage build in wow".A like button or emoji response button would be great. I feel like it is a new phenomenon that players want every this spelled out in the rules, the folks I played with in the 80-00 never played rules as written anyway.+ (we should really have a button for this )every one demanding more language on this is why games are so damn complicated now. Just house rule it.
It was never a problem when we played in the 80s and early 90s. The person in our group that played a mage, never used any armour, even when we had access to dragon armour and other fun armour types that he could use, he used a staff as a weapon mainly because that was the weapon he started with and was best at even though we had spare magic swords. He believed that he could defend himself (and he could) and others could use those items more than him. He accepted the role he played (and we where young then). Sometimes the GM said that the you can't cast spells in this room because of the walls and floor is made of iron and then he accepted that and the group tried to solve the situation with that in mind and if I (it was mostly me that was GM) needed to rule something, I used my best discretion.
Video games give us the notion a game is something to be won. I would bet most new table top role-players comes from video games, and thus carry many of the ideas they learned there.
Now i am not young anymore, and i have GM'ed a bit. I understand i can homebrew my own rules and do changes, but that's not why i am buying these system.
My view is, there more i have "fix myself" the worse* the system.
*(not fitting for the game i want to run is a better term)
Now free league isn't really big enough that we have these hardcore online rule fights over how the game works. Like DnDs famous "Rules as written" vs "Rules as intended" for instance.
But the more clear the book is the one things, the easier my job is and the less time i have to spend being the judge and possible ruining the character build Johnny has been so exited for.