As more people use Drupal (bryght, consultants, other companies) as a part of their business, the Product has a responsibility to ensure that changes do not completely screw those people over. Livelihoods are starting to depend on Drupal. There is some social responsibility in the project now.
They reason we got this far is exactly because we've been disruptive. Our primary focus is technology, not supporting businesses. We are respsonible for the technology we create and the bugs we introduce, but we can't be held responsible for keeping your customers happy. If you sell Drupal to customers who can't deal with Drupal being disruptive from time to time, then you sold them the wrong solution or you didn't educate them properly. You can't blame us for that. If customers know what to expect, and if they plan accordingly, they won't be 'completely screwed'. That said, we do care about your customers, but it is not our primary focus. It's yours. -- Dries Buytaert :: http://www.buytaert.net/