Actually, the Super Squirt uses it. But, as was the case with SR4, you probably won't see it as a thing on its own until Run and Gun (the new Arsenal). Really, this applies to just about all "What happened to [thing from splatbook" questions.
Mundanes should be able to fight bug spirits. Personally I don't think they should ever really take anything about because abuse can only happen if a GM lets it happen.