Great video Elaine. It wasn't a main part of the video you linked, but at 3:35 they're discussing a "whale" (i.e., someone who spends a lot of money on gacha games) and the subs indicate he, "did stocks and futures. That sort of thing". With gambling declining in Canada and in general worldwide, I wonder how many people who might have been gambling in slot machines or bingo might be gambling through gacha games instead, and how the profile of getting the same feeling of gambling through stocks, futures and "that sort of thing" is prevalent.
They seem easier to start, as they're primarily free to play (and many games you can stay as a free to play if you don't feel the need to progress faster) and people who may stick their nose up at gambling, may be more likely to play these kinds of games (as they grew up with games themselves). One of the hosts in the episode say as much as Marie-Claire alluded to. For financial investments, it may seem like a prudent thing to do as well and be easy to fall into as it's easier to not view certain types of investments as gambling (or viewed as less harmful or more skill-based gambling).