you are right, sorry for my wrong citation. you mentioned that you can deselect units - a thing that i was not aware of, so thanks for that info (when i first tested it long time ago it was not possible and either i did not get the patch notes referring to this change or they never published it.)
but why is deselecting units good for? you have to pay to unlock some slots… only thing that comes to my mind is to improove autoplay e.g. if you only want to spam spearmen.
and for what deselecting powers? is it to improove AP or the Ajax GK? just beeing curious.
if you want to nerf AP - just nerf CD and maybe command or maybe remove CD bonus from those AP heros (edit: when in AP mode). but i dont think a nerf is the best way, making manual play and AP beeing worth equally would be fine (for a start )
edit: just to be clear: i dont want a nerf like written above, but AP and manual play should be equal when it comes to time/speed up or getting gold/wisdom/items