Apparently people do not agree with you. If Linux virtualization tech were superior, why copy from Solaris, just like everybody does? Maybe Solaris Containers are worth copying, even though Linux has umpteen different virtualization tech. This suggests that all the Linux options are not good, because they are still looking for a better solution.
No, that seems stupid and not people, but just Oracle. Ask Oracle why they're looking at solaris cointainers while Linux offers far more powerful solution.