Restrictions on speech are usually less about arriving at a correct conclusion, and more on serving those in power. See Ag-gag laws, China and Russia, the since overturned criminalization of inciting people to resist the draft in the US (that gave us the "fire in a crowded theater" quote), the un-American Activities Committee, and all manner of state-sponsored propaganda.

To ask "will they get it right?" is misleading - they won't even try.