By Daniel Moxon Christian Horner still holds a “terrifying” amount of power at Red Bull after a grievance made against him was dismissed by the company. A female colleague filed an official complaint against Horner which was investigated last month by Red Bull GmbH. The 50-year-old continued as team principal and chief executive of the racing team throughout and is still in his post after the complaint was rejected. That’s despite bearing the brunt of other public attacks. Most notably, star driver Max Verstappen’s father Jos called for Horner to be replaced and claimed the team will be “torn …