The hard part imo was not being exposed to, or unknowingly redistributing illegal content. They claim this new freenet solves this but the details on how weren't super clear.
They got rid of anonymity, which makes this a trivial problem: Law enforcement takes care of it.
Now, whether giving up anonymity was worth it is a separate issue.
Realistically the only uses cases of this are illegal ones. It’s like Tor, you’re either using it because your government made everything illegal, or you’re using it for dark shit.
Every Tor relay redistributes CSAM daily, but nobody gets busted for running a Tor relay.