Could be a case of them interviewing a lot of people. Keep in mind a lot of people go on vacation this time of year and depending on the company/industry it could also mean this is peak season for them. I wouldn’t look too much into it.
Best of luck, hope you get it.
Because the game was incredibly successful and other companies tried to copy the formula. The same reason a lot of companies tried to copy Fortnite or League of Legends.