Scaling + ease of use.

Compare:

1) Use lots of time to find person who can impersonate specific other person. Unless you give them a lot of money or threats to shut up you can't use them to real time decieve someone.

2) Clone 1 million voices from tiktok in 1 minute. Contact 10 million relatives with a synth voice that is intelligent enough to answer questions.

We will have billions of AI's, containers, programs, agents running around trying to deceive absolutely everyone and their grandmother 24/7 soon.