Could be. I live in Argentina and we only get 14 days/year. Overall, I was lucky that I could match the travel date that they set with my vacations so I didn't need to do any explaining at my job at that time.
I did the Google interview process and it lasted around four months. Finally, their decision was to say 'no' to me. They reached out for me twice after that, asking if I was interested in doing the entire process again. I turned them down both times and tried to politely explain that I didn't have any more time for them, that I already invested all the time that I was willing to invest in any company and more... Hell! I even used a week from my vacations to travel to their offices! What I don't understand is, do they expect us to dissappear from our jobs for a week, to travel to their offices, and not loose our current jobs in the process?