I'll take the liberty to answer on their behalf because I'm on the internets and this is what we do.
Because.
Because it's a complicated program.
Because the dev team is under a lot of pressure to produce due to a lot of us with unrealistic expectations.
Because bugs are always possible.
Because the sky on Expisillon-9 is lavendar.
Because the devs like to churn out broken updates. They are NE with strong chaotic tendencies due to the company's policy requiring worship of Tsathogga.
Because there are engine changes that are underway for Markets and Calendars and Exporting that aren't complete and may impact other functionality unintentionally.
Because the devs are human.
Because ooooooh shiny!
Because the devs like messing with self-important people on the internet that have a smug sense of entitlement.
Because it's a holiday weekend. Make love, not war.
Because the bug will probably be fixed before the holiday weekend is over because the devs are dedicated to making each and every one of us happy.
Because.
Your mileage may vary. Objects in mirror may be closer than they appear. I speak for no one, not even myself. This end up.