Hi I noticed since updating to this version of Hybrid Genies now have added witch interactions and can perform all of the witches' interactions from the main menu

Yeah not sure what Twallan was trying. He was creating a system to let users set what level spells become available and how much magic power they take but it's unfinished. I'm not sure if his intention was to share the spells between occults or not. I'll review it more in the future.

It does look like this was intentional as he removed the witch blocking. Do we want me to reverse this or leave it?

I haven't tried this version of hybrid, but maybe one of the intentions of the system was to make the genie powers cost magic power? Like this mod by icarus_allsorts does: http://modthesims.info/download.php?t=519616.
Probably not, as genies powers do not have spell levels.

In my opinion reinstating the witch blocking would be a good idea, especially as I see no good reasons to remove the block in the first place.

Also on that note, it seems as if the genie's have been given all of the witches' power so now witches can't do much more than conjure an apple

Yes, the pure Witch cannot do anything whatsoever now; the spellcasting ability has moved over to the Genie. This needs reversing, as otherwise the Witch Occult has been destroyed.

I do believe his intention was to make the genie use magic power witches use and add levels to them but the code is extremely unfinished and causing issues. I'll get around to sorting it in time.

I believe what he was trying to do is allow options for any occult to have any spell so you could pick and choose which occults got which spells.