You shouldn't have to ask
"So, tell me your pain points" is the wrong question to ask.
Microsoft have zero institutional memory. People move too often and anything the previous person committed to is forgotten when someone new takes over. The question and attitude is symptomatic of that. Surely research and understanding has already been done, but Ms Liuson imagines she can start with a blank slate. Do not throw away what Microsoft as an organisation already knows.
Just throwing out the question will only attract answers from people who imagine that answering will be productive. People who have seen it all before will ignore it.
Platform change is the killer. If we have to make a wholesale change for an application to work on this year's "strategic platform", we may well abandon the platform altogether.