Well if you want to create tension, you are going the right way about it.

The fact is this: Master Nodes need applications built. Darkcoin is going to spend the foreseeable future building currency related applications.

There isn't the capacity, that I can tell, to build other 'non-core' applications.

But Master Nodes are decentralised servers. They can do many, many things.  If you have a sequential approach, then alternative uses for Master Nodes will take decades.

Working with others to create test case applications for Master Nodes is actually beneficial to all projects, including Darkcoin.  It's free R&D for Darkcoin. As the market leader that can use other's Apps that prove to be popular, it indirectly provides price and demand support for Darkcoin. It makes Darkcoin potentially more investable over the longer-term.