I would go even further here.
The Eclipse <-> Maven integration is still (2015!) hugely messy, often requiring special hacks within Mojos to work [at all].
M2E - which seems like the preferred choice in the Eclipse community - depends on largely undocumented hacks to
work with Mojos updating file systems and other IDE/Maven-related properties.
For example - I still don't know how to make ITs within a Mojo codebase to validate that M2E gets whatever data
it needs to work properly.
It seems that the Eclipse community requires less entropy to get their Maven integration to work properly - not more.
Hence, I would recommend not adding the Eclipse Maven plugin to Mojohaus unless someone is actually prepared
to work with it and maintain it. We already have a lot of plugins, and adding yet another rarely-if-ever-used mojo to
our collection does not seem to assist in creating simplicity for developers out there.
("Focus on the living, not the undead").
My 2 cents.