Do they really think we are stupid and do not remember???
I think it's more to do with the fact that they don't think about us at all but are confident of their ability to lie, twist, deflect and spin their way out of anything, however blatant or appalling.
For example, here's Alexander Stafford, the Tory MP alleged to have been "manhandled" by senior members of the government tonight. "Lots of rumours flying around tonight. This vote was never about fracking but about Labour trying to destabilise the country, and take control of Parliament."
We're supposed to ignore all reports of bullying, manhandling, shouting and blame Labour.