No one implements compliance goals for fun. If they didn't think they were going to have to comply, they wouldn't do it. If they thought the law would be overturned they wouldn't do it. Same if they thought they would successfully fight the law in court, if they thought consumers would revolt, if they thought that they were a Special Squirrel who would get exemption, or whatever.

Does this put them stupidly behind schedule? Yes, and bummer for them, but I highly doubt that a company as politically savvy, legally savvy, and wealthy as Apple would do this "by mistake".