It's not just populist tilting at windmills.
There's an existing concept of and precedent for, "Too big to fail." The wikipedia article gets the idea across [0].
This creates an implied "insurance" program, tilting the risk profile toward being aggressive. Taking a moon shot isn't so scary when you think the government will probably step in if it blows up bad enough.
This fluffy, political statement is a message: don't count on it.
Perhaps it will give investors/executives a few thoughts on preparing to deal with a potential blowup themselves?
It’s populism. The minute a big chunk of the voters face real pain you will hear cries for bailouts