[Edit: See comment for correction that explains that Radio-Canada includes TV. I'll leave this here because some of the info is valid]
From the article: It also questioned why Radio-Canada was preserving its master recordings after making digital copies but CBC had opted to rely only on digital copies
This statement shows a lack of understanding of the problem. Old audio recordings can still be played. Old video recordings from the early VTRs[1] are going to be unplayable soon: the people who have the skill to refurbish an old VTR are well into retirement age now. There are only a handful of the original VTRs still operating.
From the article: It also questioned why Radio-Canada was preserving its master recordings after making digital copies but CBC had opted to rely only on digital copies
This statement shows a lack of understanding of the problem. Old audio recordings can still be played. Old video recordings from the early VTRs[1] are going to be unplayable soon: the people who have the skill to refurbish an old VTR are well into retirement age now. There are only a handful of the original VTRs still operating.
[1] https://en.wikipedia.org/wiki/Quadruplex_videotape