I will note here that I did not attend the mini-assembly (four reasons: I'm not a delegate, I already got my input into the process starting nearly a year ago, I was satisfied with the language (not enthralled, but this is bylaw language, in the bylaws, not poetry), I knew that the bylaws-established process did not permit sumstantive amendment at this stage, and I fully expected that there would be amendments--in the future--to the painstakingly drafted language).
So I was rather shocked to find that there was a coalition of people hostile to the change. I'll have to explore (please, feel free to explain your part if you're part of it) those reasons.
Two I've heard that I'll admit that I dismiss is that "they're not broken" (one doesn't only address things that need to be "repaired") and that changing them would create chaos for various R.E. people and somehow violate the wonderful Sources Cantata (which was performed at the PSWD D.A. and is wonderful). Those are crappy reasons for embracing creedalism. If that's where we're going, fine--that should be argued for in public.
One of the arguments I'd put forth for a serious change is that the Principles themselves have started to be treated like a creed by some--hurling some principle at another, citing it as being violated, and accusing the violator of being a bad UU because of it. If that's not creedal thought and behavior, I'm not sure what is.
The words aren't the essence. The essence is what we're about, and to my mind, ought to be expressed and re-expressed regularly so that we avoid mistaking the container for the contents.
The support of nearly half of the voting delegates (tangent: where were the others on such a major issue?) for the change makes clear to me that a change is coming, and soon. Of course, the bylaws forbid it being brought back up for two years. But I suspect that will sorely test our beloved moderator's insight, grace, and good will. Would a proposal to amend only one section of Article II qualify as bringing the same issue up? Given the fervent call (supported by the Youth and Young Adults) for the statement of inclusion in place of the statement on non-discrimination, I would hope to see that change sooner, rather than later.