They still need to apparently air it less often with as abysmal a performance as a five-digit viewership. Ditch DWTS and start airing Sherriwed game less often. I find it interesting that reruns of Family Feud, which have 8 spots in the top 25 are beating the pants off of it.

And 5th Grader also has five slots. But that schedule is good proof of why I don't watch a lot of GSN anymore. They are limited to airing less than 20 different shows. Seriously? That sucks. I remember when you would see a show a maximum of once or twice a day, and GSN had a much wider variety of programs on.
And the ambient temperature of Hell would decrease to -159.86° Fahrenheit. Do you
really think that GSN would be willing to fork over the heavy license fees that would be required to air a first run episode? Similarly, your explication has another fatal flaw. ABC is seen all over this country. GSN is visible to maybe 20% of that audience. There's no way they would ever get enough viewers to offset the gargantual costs that it would bring.