One definition that I have read for IPA states: Intelligent Process Automation (IPA) refers to the application of Artificial Intelligence and related new technologies, including Computer Vision, Cognitive automation and Machine Learning to Robotic Process Automation.
With this in mind then yes, Microsoft Flow can absolutely be used to satisfy this definition.
The outlier part is where is states “the application of .... to Robitic Process Automation”. So I guess the question is: do you have connectors to allow the triggers into flow and Actions out of Flow to interact with your Robotic control systems? If you can then I think aglow Satisfied your needs.
Some other areas I would consider, especially when dealing with robotics or automated manufacturing systems is:
1. What is the best, average, and worst speeds that Flow might respond to a trigger or respond to the robot? Is this acceptable and within safety parameters?
2. What would your process do if the service became unavailable?
3. Are the Flows set up securely? Who can modify them?
As with anything, it probably depends on your requirement, but it seems to fit the definition.