That is really easy to fix with a mod, or even manual changes to some of the game .txt files.
There is an entry for each skill "Autocast" "yes/no"
As a player, I like autocast skills, and extra clicks without any need makes me nerve ^^, but a toopltip about it would be great.
I feel like the flow of the game is slowed down too much because of "prepare" phase for each and every skill.
And as a modder, i can see why they did it.
One of main reasons - less animations and effects to do, and less "Oh, the same animation here again" feeling for players
Prepare animations are a nightmare to do, to make them look unique and express what is going to happen is not an easy task.
So while it is a really easy to fix with just 1 .txt entry (yes/no), making it look and feel properly requres alot of creativity and efforts.