She's a target of the warrant. It's her house. Glover was using her car. Of course she's a target of the warrant. Her guilt or innocence in drug trafficking had nothing to do with the warrant's issuance. She's not the target of the investigation. If I'd been renting a room in her house, I'd be a target of the warrant too.
Sorry, but she was the soft target of the investigation. As you (hopefully) know her house was only one of the warrants executed on that day.
From NPR: "The purpose of the raid on Taylor's home was to find evidence linking her to an ex-boyfriend, Jamarcus Glover, a convicted felon with a history of drug trafficking, according to court documents.
Police didn't find any.
Now it appears prosecutors attempted to tie Taylor to a life of crime after her death." [0]
Now color me sceptical, but that appears to be an interesting argument if she's not a target as you continue to incorrectly posit.