Ontario is poised to require every high school student take four online courses. What does it mean?

Last week, the provincial government announced that secondary school students will be required to take four out of the 30 high school credits required for an Ontario high school diploma as online courses.
The announcement had few details, except that the changes will be phased in starting in 2020-21 and the delivery of all e-learning courses will be centralized. However, if the province goes ahead with plans to make four courses mandatory, Ontario high school students will have more compulsory e