If we want to definitively say that Wang Qi's current touch on the Primordial Spirit Heaven Barrier is due to the Heart Demon Mysterious Net, then there's one point that still requires reflection.
The "Primordial Spirit Stage characteristics" Wang Qi carries, or the "ability to touch the Primordial Spirit Heaven Barrier," is it truly derived from the Heart Demon Mysterious Net?
Although Wang Qi let his Spirit Rhinoceros Illusion operate within the Heart Demon Mysterious Net, he isn't absorbing or refining the Heart Demon Mysterious Net. He's different from the Holy Emperor Venerable. The Holy Emperor Venerable doesn't believe in outer objects, so he will refine anything powerful and valuable upon seeing it. However, Wang Qi believes that tools are just tools.
Throughout, he treated the Heart Demon Mysterious Net as a special ultra-large calculator network, using it.
