I wonder what pushed them to do it? Did something serious go wrong with some cases of agents booking flights, or is it more motivated from a fear of Big Tech AI gaming the dynamic pricing system that they control and potentially making them lose profits because the Agents will get much more optimal/cheap flights than mere mortals?
Heh have you seen how slow airline sites are to get results? Now imagine them buckling under the load of an agent launching 20 simultaneous browser sessions to price-compare all minute variations of a specific trip request