Thank god they're still dead, if they brought them back all they needed to do was get Peter, MJ, Harry, Gwen, Flash, Liz etc. all together, have them hit by a de-aging beam and sent them back to college to complete the "Just like when I was young" plan too many comic book writers seem to follow.
I don't have a problem with this current story, primarily because the door for Peter's return is wide open, he already uploaded parts of his memories/personality back into his body. So his body is alive and his personality is kinda, sorta floating around inside, he's so not dead.
It would be different i they had blown Peter's head off and later made up some idiotic story how he came back because Dr. Strange had a hiccup or something. This isn't about Peter's death, this is about Peter's brain being screwed up by Otto's memories and Peter going gaga for a little time.