Despite all of the expansion, Eastern only appear to be recruiting at CWL. Is the page out of date? CWL recruitment was also happening back in Feb/Mar before the pandemic. Given that they appear to have cut MME-CWL, there's only the twice daily CWL-VLY route from CWL which shouldn't be too difficult to recruit 1 or 2 cabin crew for.
https://www.easternairways.com/careers/cabin-crew