It is not possible to upgrade my Joomlart templates and extensions through Joomla Updater. For me, this is very annoying as I'm mainly using MyJoomla to manage my updates. Joomlart is not following Joomla conventions here and is really breaking my workflow.
Could you please elaborate on what is so much of an added value that it is worth breaking the compliance with Joomla standards? Is there a way for JA extensions to play nice with MyJoomla?