They were more than a few feet on the floor. Half the bench and one of the assistant coaches came off the bench. I read the link that SAJ provided about a similar situation. Some refs agreed in calling the technical and others didn't. I believe in using common sense, however, what Team A did was a technical according to the rulebook. I have no problem that it was called but in which the manner that it happened. You call it right after it happened not as one person said earlier "retroactively." It was a hard pill to swallow for Team A but it was their own fault.
There is video of the entire game. Here is the link:
Girls Varsity Basketball vs. Lake Oswego | Lakeridge High School Videos | iHigh.com
the incident occurs at 1:31:43
watch the video and decide for yourself.