The best answer would be that, yes, it is a lower threshold the worker has to achieve in order, from his standpoint, to show that the injury is compensable, and that is the intent of the change.
Mr. Doyle on Committee Motion 14-15(6): Amend Clause 12 Of Bill 6, Workers' Compensation Act, Carried
In the Legislative Assembly on August 21st, 2007. See this statement in context.
Committee Motion 14-15(6): Amend Clause 12 Of Bill 6, Workers' Compensation Act, Carried
Item 20: Consideration In Committee Of The Whole Of Bills And Other Matters
August 21st, 2007
Page 483
Doyle
See context to find out what was said next.