Agree. And I think that's the intent of Gabby's family, at least of her mother (along with wanting to punish the L's because of what BL did.) Remember though when the search for GP was ongoing NS said she understood BL had a Constitutional right to silence but she thought laws needed to be changed. That people shouldn't have that right when someone is missing. (And I guess not when someone is dead, kidnapped, raped, robbed, whatever, but she just said the right needed to be removed when a person is missing.)
We're already letting people convicted of serious crimes out of jail/prison early because of overcrowding. Not sure how it could work if lots more people become criminals because silence is deemed illegal. And if people choose jail over talking are we likely to need even a bigger "stick" than jail to force talking? I guess in the "olden days" LE used methods they can't now use. Going backwards wouldn't be good IMO.