Resurrection was possible? Good heavens, how did I miss that when reading...
There were guidelines prohibiting sorcery from accomplishing certain things in the original magic supplements until hard rules were established with
Magic in the Shadows, the SR3 magic supplement. Resurrection was never explicitly prohibited until
Street Magic (SR4 magic supplement). What happened was that someone who'd been bitching about the Shadowrun FPS, and specifically its Resurrect spell, *ahem* noticed that it was never expressly prohibited. This was in part because the metahuman soul was never classified as a "spirit," and so it didn't technically count that sorcery couldn't summon or banish spirits.
MitS, 47.
However,
there is no prohibition on using Conjuring to resurrect a metahuman. Some may argue that since
Street Magic says "once a person has passed away, they are gone forever." 160. That is a matter of considerable doubt since exceptions have existed for the history of the game, and there is even a caveat immediately following that clause, "(though some view conjuring spirits as raising the spirits of the dead)."
Id. Besides that, there are exceptions ranging from memories and personality traits assimilated by shedim or flesh forms to echoes of memory/personality being tied to a location on Earth, i.e. ghosts, to the existence of summonable spirits in astral space/metaplanes who are or are nearly indistinguishable from the dead (ancestor spirits), and at the upper end fragments of person's astral form/spirit/soul becoming a new spirit altogether (Dunkelzahn and Burnout).
In other words, magic can do damn near anything. Sorcery has limits, but there's a lot of magic beyond that field. That rule against altering the fabric of the time/space continuum, for example. Sorcery can't do that, but since SR3, the official explanation of how the Movement critter power works has been that it is a form of time dilation. That may not alter the space/time fabric, but it does stretch the shit out of it.
Also, instead of teleporting, he could have done the same trick Harlequin does, where he travels bodily through the Astral plane. There were a lot of things that were very possible in previous ages of magic, that aren't possible given what metahuman society of the Sixth World knows about magic. Dragons, Immortal Elves, and other such groups are not necessarily bound by the same rules as the rest of us.
Maybe.