It's been awhile since I watched the CFL but used to enjoy it years ago. On the single point issue, definitely one of the most unique and bizarre rules in sports: a point is awarded not just for punts downed in the endzone but for other certain plays downed in the endzone: field goal return (common in the CFL), and other scenarios:
From Wiki: In Canadian football, a single (single point, or rouge), scoring one point, is awarded when the ball is kicked into the end zone by any legal means, other than a successful field goal, and the receiving team does not return, or kick, the ball out of its end zone. It is also a single if the kick travels through the end zone or goes out of bounds in the end zone without being touched, except on a kickoff. After conceding a single, the receiving team is awarded possession of the ball at the 35-yard line of its own end of the field.
Singles are not awarded in the following situations:
if a ball is downed in the end zone after being intercepted in the end zone
if a ball is fumbled outside the end zone
if the kicked ball hits the goalposts (since the 1970s; before then it was a live ball)
when a kickoff goes into the end zone and then out of bounds without being touched
In all these cases the defending team is awarded possession of the ball at the 25-yard line.
https://en.wikipedia.org/wiki/Single_(football)