After reviewing the recent trend by CIC as reported by several forum members, it can be assumed that there is an internal procedural change in the way Medical instructions were sent by CIC or LVO. Previously the procedure followed was that, first LVO will send RPRF,MR, and SCHEDULE-A update request and in some cases only RPRF and MR without SCHEDULE-A update request. And in that email of LVO it used to be mentioned that you will get Medical Forms within 2-3 days.
But it seems that they have amended the procedure and in recent bombardment of Auto-Generated emails, three applicants of LVO have reported that they have received medical forms by auto-generated emails from CIC, without receiving MR and RPRF emails from LVO.
So, there might be an internal change in procedure of the CIC/Visa Offices.