I'm aware that it doesn't update on the monthly schedule time/date block, but do you know for a fact that it doesn't display somewhere else that we can't see but the schedulers can?

When one of my friends looks at my schedule, I see there 6 digit number, name, the date time they looked, at it say "via Micrew", so to think that the company has no idea how you looked at your schedule, regardless of whether it updates the times on your monthly schedule, is foolish.

Yes, the PWA says schedule checks have to be done via icrew or VRU, but I'm willing to bet the company can 100% see that you looked at your schedule via Micrew. My guess on why its not an approved method is because we all know about the garbage transfer of data between DBMS and Micrew showing erroneous trips with the wrong equipment, or all legs as DH's, etc.