Jules, I work in two different BTSA consortia and have for 6 years. I will tell you your support provider did not act professionally. Teaching is a wonderful place to spend a life. T, I am not sure but what you, inadvertently, did act in somewhat of an unprofessional way. For teachers to complain about extra work in a public meeting is just not the thing to do.
Teaching is darn hard.
If you had a comment to make, it would have been better to have done it privately. Complaining is just not something that professional teachers do. Part of the problem, we know, is that beginning teachers are not given a crash course in politics. There are politics in any business. Education is no exception.