My biggest issue with magic is it has always seemed to be used for the OOC purpose of being "stronger" then your peers which is consistently changing due to nonstop lore rewrites/additions to increase groups power. Further I think that there is often an air of entitlement to having access to as many magics as possible where you will see people have multiple characters banking magics from groups that they have minimal contact with (shamanism throughout the years has been a prime example).
Idk for me magic is a miss from my experiences with it both as a non-magic user and a magic user (albeit mostly just dwarven ****). I just generally don't agree with how it is handled.
tl;dr its a saturated mess that seems often to be used as a OOC power level and/or a means of forcing players into being your underlings by handing them candy without actually gauging competency or interest in being involved.