I said it differs from MP to MP, some will play that card for sure ( regardless of political affiliation ) but to apply the notion that they are conservatives and won't help you is incorrect. Parent sponsorship is not 8-10 years for ISL ( around 6 or some additional months tops ).
Some MP's email LVO, some ask their rep in Ottawa, some ask to contact only after stipulated time
As for things changing after 2006, I empathize with your situation but I have read articles on how CIC officers are distressed in ISL as they don't get proper co-operation from local authorities for verification. It could be political or lack of interest in ties or lot of bad apples spoiling the game