They've been following their new TOS, but only when Trump became the president were they able to write down the TOS without fear of repercussion.
All the most successful political actors are able to selectively control the flow of information. They don't put their beliefs in the TOS until doing so confers an advantage to them. Once it does, they do. The TOS still doesn't contain all their rules - only the ones that are advantageous for them to announce publicly.