Why is Twitter referenced in all PL-900 materials?

Question

Why is Twitter referenced in all of the PL-900 materials as a potential connector using Power Automate? Twitter had been called X for a few years now, but in Microsoft training materials for the PL-900 exam, for example, here: https://learn.microsoft.com/en-us/training/modules/introduction-power-platform/2-explore-microsoft-power-platform, Twitter is mentioned as a connector. I've seen this in other people's videos on PL-900 as well, so this is quite strange to me.