Query regarding mobile application

Hi, I have a query regarding mattermost mobile application. Just want to know as why mattermost developer have used native for developing mobile application, as there are HTML5 and hybrid technologies available which enables us to create cross-platform mobile applications that work on
multiple devices. Also Hybrid apps make it possible to embed HTML5 apps inside
a thin native container, combining the best (and worst) elements of
native and HTML5 apps.