Many things would be much clearer if they would actually use the official spell texts, sadly.
Of course, they'd also have to actually make the spells line up with the official spells, too. In *most* cases (not all) it would be an improvement to the game if they did so.
They'd also have to sort out spell effect timing and save-out timing to actually follow the official rules as well. In *most* cases (not all) it would be an improvement to the game if they did so.