Unlike the Guna Caves, Inala ensured the tunnel in the cyclotron wasn't pitch black. The Hidden Eye relied upon sight, and if it couldn't see anything, it would target its surroundings in an effort to make a line of sight.
He had already confirmed multiple instances of it and experimented with the range, power, variations, etc. If not for the Biome Lattice, he wouldn't have enough Prana to make such an inconceivable number of experiments to fully tabulate all of the Hidden Eye's data.
That was in terms of experiments. He also took precautions, even against the Transcendent Eater. Virala said he spoke to Sumatra's Transcendent Eater. Their short conversation was more than enough for Inala to calculate based on the Brimgan Founder's memories that all the Parute Trees were an extension of the Transcendent Eater.
