If you make an allegation in a sworn statement and then plead the 5th, then your allegation is basically null and void.
Again, that proves my point about a lawyer you can trust. Ford could have been in a situation where the 5th was appropriate, even if it meant Ford's previous statement is thrown out. Better to withdraw allegations than face a felony perjury charge.
The lay person typically doesn't know the law, including you and me, and can easily be tricked into self-incrimination. That's why Trump has been advised not to testify to Mueller. That's the whole point of the 5th as well. A lawyer representing Fineswine while pretending to represent Ford - Katz - could possibly allow Ford to self-incriminate to protect her real client from repercussions or legal action.
What I'm getting at here is Fineswine has everything to gain from having her own lawyer pretending to be Ford's lawyer. I don't believe Katz was acting in Ford's best interest. It could also explain a lot of the inconsistencies in the delay period between the leaked allegations and the hearing.