Yes I am being pedantic, precisely as you insisted on being such. Common City parlance of "the yield curve" refers to Gilts - that does not prevent you creating a yield curve from any set of rates, the latter of which mentioned by your quote is referred to as "the swap curve".
I still fail to see what is so wrong with Sciolistes' post. Manipulation of reserve requirements, while uncommon in the UK (as there is no target ratio here), is common overseas, and artificially low rates stimulate an economy out of recession.
The common perception of the man on the street of "passing on interest rates" directly is indeed flawed as you helpfully point out, but as an end result of increased demand for borrowing and lower saving, it is the indirect consequence of policy rate changes as savings and borrowings even out across banks and the economy.
The BoE themselves seek to influence mortgage rates through this mechanism (more effective in nature than European countries whose mortgage and borrowing demand is limited by culture), not in monthly changes to rates, but in the long-term indirect effect on aggregate borrowing.