It could have contributed a decent amount. Maybe it's not that they couldn't think of any names, but that they couldn't think of any good names, so they asked what else they could do. One option was a branding change.

There are lots of software companies that use named releases, but if you try to stick with a narrow category and use every letter sequentially you're going to run into some problems eventually. Even if they got past Q this time, there are a lot of letters at the end of the alphabet that were going to be hard to come up with good dessert names with.