Negative affects? No, not really. But Apple managed to have a TON of secrecy this year where no one was really sure what was going on. We didn't even have much in the way of hardware leaks this year.

Then they had the HomePod leak, now this. A lot of the surprises that we're going to be in their presentation are now known by the enthusiast set.

It's really a stolen thunder/pride thing.

I'm a little surprised you didn't know a new iPhone was coming as they announce them the same time every year.