WoW should transition to an open-world sandbox RPG after World Soul Saga ends

No, it doesn’t.

People pay for WoW because they want to play WoW, not because they want to play Sea of Thieves

I am having no problem interacting with the World.

Perhaps you need to uninstall and reinstall.

WoW is suppose to be both.

Unfortunately, too many WoW players have the initiative of a sloth and the attention span of a gnat and had most of the RPG elements removed, making it clear they don’t want to play a RPG.

So, your suggestion is both illogical and imprudent.