The change is that the larger and more powerful you are on the road, the greater your personal responsibility to ensure the safety of others.whats being changed
the left only lane can now go straight ahead????
I don't know that junction specifically but unless cyclists were banned from going ahead and HAD to turn left (unlikely), the cyclists did nothing wrong.
For clarity, even if the cyclist was in the right, it was very unwise of him to take that line next to an HGV.