The WHO have published their recommendations, based on what they learnt in China and what they think other countries should do:
https://www.who.int/docs/default-so...na-joint-mission-on-covid-19-final-report.pdf
I don't think they've been inconsistent. They are a UN political organisation so they have biases and aren't going to directly attack governments in public statements, but that doesn't mean their advice is contradictory. I think they still oppose broad travel bans, since they think it harms collaboration between countries (which is their entire raison d'etre).
Their advice is basically to get ready. Have resources available to test, trace and quarantine cases as they appear, because they WILL appear. Experience in China shows that the earlier you intervene, the quicker you can halt the spread (see Wuhan where intervention was slow and took a lot of effort, and and the rest of China that pounced quickly on new cases and didn't need such extreme measures). Nowhere has reached the uncontrollable stage where contact tracing becomes impossible, not even Wuhan, so we shouldn't stop trying. Make sure the public understand the risks, trust the government advice, and instil a sense of communal duty to fight the virus by taking hygiene measures seriously.
Basically, don't be America. Don't try to make unenforceable travel bans that cause a panic, don't avoid testing to keep the numbers down, don't try to do everything yourself and ignore the experience of other nations who have already dealt with the problems, don't downplay or ignore the threat, don't have government figures give mixed messages or play politics with the messages and don't leave people to fend for themselves with no government support.
