Perhaps I simply don't understand what you mean, but it sounds like the first point could be rephrased in some way. To me, workflow integration and data privacy sound very much like technical blockers.
Sure, it then becomes a technical challenge to work around those limits, but that may be cost/time prohibitive.
Some key challenges around workflow are that while the fundamental white-board task flow is the same, different companies may distribute those tasks between people and over time in different ways.
Workflow is about flowing the task and associated information between people - not just doing the tasks.
Same goes for integration - the timing of when certain necessary information might be available again not uniform and timing concerns are often missed on the high level whiteboard.
Here's a classic example of ignoring timing issues.
https://www.harrowell.org.uk/blog/2017/03/19/universal-credi...
One is technical (it’s a hassle to connect things to a specific system because you’d need to deal with the api or there is no api)
The other isn’t, because it’s figuring out how and where to use these new tools in an existing workflow. Maybe you could design something from scratch but you have lots of business processes right now, how do you smoothly modify that? Where does it make sense?
Frankly understanding what the systems can and can’t do takes at least some time even if only because the field is moving so fast (I worked with a small local firm who I was able to help by showing them the dramatic improvements in transcription quality vs cost recently - people here are more used to whisper and the like but it’s not as common knowledge how and where you can use these things).