(p 113? That explains that Creo spells that "create" something can only target Individual or Group, so you can't "Creo Terram" a "room" worth of rocks or dirt. A healing spell does not fall into this restriction. Is that what you're thinking of?)
No, it doesn't work that way, but this is off topic. I'll start a new thread (here: viewtopic.php?f=4&t=7420 ) and this tangent can be discussed there.
d+5 is hardly a "mage killer", nor does it do "great harm". A disease is not an instant killer either, far from it. So I'm not sure what your argument is, here.
I know what the rules say, and said as much above. I have no problem with your interpretation of the RAW. But you're missing the point by only paying attention to that and ignoring the larger issue, that lies at the core of the game - The Order.
If it was that easy to get around Parma, magi would never have met peacefully, and The Order would never have been formed in the first place. So something more than just "what the rules say" has to be going on.