That's the reliability that senior players bring, but it only becomes obvious when a greener player who can't handle the pressure steps up. Everyone in the comments was saying that they felt assured with Ito on court too.
Against China, Ito needs to meet WYD, and Miwa can hopefully meet CXT. I'm guessing CNT will play SYS1 WYD2 CXT3. I'd prefer if Japan played Ito1 Hirano2 Miwa3 against such a lineup. But that means they are doomed if CNT decides to switch WYD and CXT. The problem is both Ito and Hirano are helpless against CXT, and Ito against SYS as well.