There's no such thing as a "hands-on leading developer" on a "large-scale refactor" at Google, it'd be like saying you were the hands-on leading mechanic on building the 787 dreamliner.
Author here. They do, even most recruiters require this before submitting for some of these jobs. Most hiring managers also filter that out by behavioral interviews and seeing how you handle team work, large scale work, and discussion upwards and downwards. Especially the higher you go, the harder it is to lie to get through.