There is no universe in…
There is no universe in which a Mitsubishi vehicle is more reliable than a Toyota. I have been following them since the 80s and while they have fielded some attractive cars in terms of performance, not one publication tracked the reliability over time. Their engines frequently failed between 50-100k miles. If one were in traffic and noticed a smoking vehicle it was always a Mitsubishi. They did not fade into a rounding error in auto sales because of their low price but because that price was coupled with abysmal reliability.
As for Subaru, this site is a Subie fanboy site so this crowing is expected. While far more reliable than Mitsubishi, Subarus fall short of Toyota and Honda just for head gasket problems alone. Further a lot of reliability issues CR reports on are infotainment annoyances and mechanical issues reported by owners in their first few months of ownership.
A far better metric is the survey of mechanics that rate Honda first and Toyota second. I do not know where Subaru fell on the ratings because I did not want to consider them after experiencing the rustic environment of a Fotester.