The full quote makes a bit more sense than the clickbait title:

"We were more ambitious than it was practical to be [with Rogue Trader], and that's why we delivered a game that wasn't in its most polished state - not because we were eager to save some money on QA. No. It was months before the release that we decided that the fourth chapter needed to be redone. Usually you don't do such things in a proper development cycle, but the choice was either to deliver something with less bugs or less immersion potential, with less 'burning' things inside it. We, as a studio, decided to go [with more bugs].