I think the following link is more relevant to our cases
https://services3.cic.gc.ca/ecas/redir.do?redir=app_perm_com&lang=en&app=ecas
The one you posted was when applicants would only submit applications to Sydney, then documents to the appropriate visa offices. "In process" now consists of three parts:
1. Application Received
2. Application Processed
3. Medical Results Have Been Received
Based on my GCMS notes, and also based on what I've read from other forum members, within the context of FSW (MI-3 and later), the date indicated by the second line is the date you pass eligibility (though it could also mean the day applications get rejected), and that admissibility checks are now initiated.
The third line indicates that medical has been passed. Your application is 'in process' up to the third line.
'Decision Made' however, can still mean that an interview is still required, though I hardly see anybody on this forum that got interviewed after decision made.
I hope you get your PR then before you head back home

Keep us updated. Your case would be a really good case study for all of us (regarding adaptability points).