Here's the biggest factor in all of Spez's deceit, Apollo is an afterthought. 3PAs are smaller businesses, and I'm betting that he didn't want to outright make enemies of industrial giants like Microsoft and Google (that would be incredibly stupid), so my guess is that Spez is running with the whole claim that he doesn't want to subsidize the profits of 3PAs to avoid pissing off the people who could ruin him. However, in no unclear terms, he wants to convert his biggest API users, the ones who demand dedicated server pools, into income streams. He wants to sell our content, as his own:
Huffman said Reddit's back-end infrastructure includes separate server pools solely dedicated to handling the scraping that Google and Microsoft do from Reddit every day.
"Reddit represents one of the largest data sets of just human beings talking about interesting things," Huffman said. "We are not in the business of giving that away for free."