"Maybe giving the open source plugin more attention and release an official CocoonJS plugin for C2 with a small support is still the best option?"
Seems familiar... oh right, there was an official cocoonJS plugin, but ludei did not a great job at keeping scirra knowing informations to maintain it properly
Then ashley gave it to ludei so they do it themselves correctly, they released it as an open source plug in so they won t have to do it.
It was also a broken plugin when it became open source.
Cocoonjs is a clunky exporter that scirra cannot control in any way possible, so they shpould not support it in any way, also it is not really that compatible with c2, at the end, depreciating it is the best thing they could have done, it is clunky, if users wants to use it, sure, they can, but this is a responsability scirra should not take since if cocoonjs fails once again, then scirra will be hurt by it another time, with no control over it.
It is just too big of a risk, and a decision that was not immature, they kept supporting it for years, always dissapointing, crosswalks and ejecta were added just to have a valid alternative to cocoonjs, but right now cocoonjs is still preferred over them (which also implies small games are mostly made, since the memory management of c2 is incompatible with cocoonjs).
At the end, if you have problem with cocoonjs, you may want to talk to ludei directly, it is them that maintain the wrapper.scirra cannot do anything nor guarantee it will work, only for that it should not be listed inside the exporters.
However, it should not be completely dropped (it is not completely dropped here so it is ok)
Edit:since this topic is for people wanting it back, It might not have been wise to post here as the post count would increase, if this post disturbs someone, I can delete it.
@kazaamafia I think you can still export to cocoonjs using the beta, it is a depreciated exporter, which means it is accesible via a right click on the exporter list.