We have talked about this before and your desired features are legitimate, but a bit difficult to implement.
1. Diagnosis of a stroke flaw is easy, but offering instructions on a fix, beyond just a simple isolated sentence, requires situational analysis (a bunch of drills) and a database of many players strokes to compile your data against. It is straight forward but a huge project. It can be done but i definitely do not have the bandwidth or specific software skills to make it. Maybe someone else can do this for us as a community project, but I can’t do it by myself. If completed it would be an awesome feature.
2. To analyze real time cue alignment against visual alignment we would need something like smart glasses, which is extremely difficult hardware to design. It would be really cool though, but quite expensive. Also glasses sit low on your face so they would need to be special.
The DigiCue is only good for telling you what you did with the cue dynamically during your stroke. It can not measure anything static. For $160 the trade offs you get with the DigiCue, people find are still worth the money.