I think that Node-RED and edge impulse would form a very nice wedding.
I am especially thinking about the development of a specific node-red node that makes it very easy to use an impulse in a node-red flow. Note that Node-RED can be extended by anyone through the creation of new nodes.
The work to do so might not be that big as node-red is a node.js application and edge impulse already supports the local execution of an impulse using node.js (see https://docs.edgeimpulse.com/docs/through-webassembly ).
Node-RED has a very vibrant community in the domain of edge computing so I can only see win-wins when it becomes easy to integrate both worlds.