So heresay not from a direct source. So the person doesn’t work with IRCC or for the Canadian embassy in the UK. What do you mean works closely with IRCC - federal government employee, RCMP, CSIS? You don’t have inside knowledge. What does moving to Canada have to do with not issuing visitor visas? UK doesn’t issue or stop the processing of Canadian visas so not sure what you are talking about. The long processing times are due to backlogs, number of people applying for visa from the UK and staffing issues. Not enough staff to process the number of applications.
I used to work for the federal government so understand the workings of government.