The way I see it, DDO has two main audiences, with varying degree between them.
There is the lore focused Role Play (RP) type were the game is more than just killing something. They step into the game would in their mind.
There is also the "bring on the action and let get on with killing something" type.
Both are valid ways to play and rewarding in there own way.
Any in-game systems needs to respect both these player types.
As for me I am some place in the middle. There are times I just want to go into a quest and be a murder hobo. Then there are time I let my imagination take center stage and transport myself into the game world. I stop short of doing voice impersonation thought
Leave the current system as it is but add a way for players to go to mage university and pay an NPC to bestow some knowledge on them aka teach them all the none rare spells.
This does not infringe on the enjoyment of either play type. Everyone should be happy with something like this.
If you complain about this type of arrangement, it simple means you want everyone to play as you see fit, regardless of their enjoyment.