Addressing the Tarkov argument first. Tarkov being the most popular extraction shooter, doesn't tell us anything about the market as a whole. Like any and all creative endeavors that are made products, there are niches. Something being the most popular in a particular niche, doesn't tell us anything about games outside of said niche.
Yes, these "high risk" games have became popular over the past decade. There also wasn't many options for the player who enjoyed that style of gameplay, beforehand. It just as easily could be that this market was not being served, previously, and now is.