This sounds more like an excuse rather than any sort of rational argument as to why game engines can't be open sourced. The reality is that there are plenty of projects out there helmed by incredibly talented engineers with extremely high level knowledge that exist in the open source realm; one only has to look at the geospatial community to see this.
Unity fucked up hard here and I hope that their planetary-level screw up will lead to game developers pushing for open source engines to avoid the control of their games being stolen.
Unity fucked up hard here and I hope that their planetary-level screw up will lead to game developers pushing for open source engines to avoid the control of their games being stolen.