IRstuff,
I have no disdain for architects, I am precisely an architect. I simply signal that there maybe circumstances that may impel to third parties to proceed without consulting the authors of some previous design.
I might have just added that I may find courteous -as I find- to give notice to the designer/s, and maybe just that way avoided your rant.
But in reality if the designer intent is so appreciated and to be mired, better (if he wants) retain him as the authority deciding the matters, or at least as some kind of supervisor consultant. I can assure you that if I have a project and they don't want me as the director of the works, and further know that they are just ready to change enough the project (without being required) that one starts to think that his works becomes unappreciated, the wish to stay involved with the straying ways of what is initially your project get much diminished.
Respect what happens "down on the road", frankly, I have seen more of ill will and cunning in resolving trial causes than intent to establish justice, so I think communication or not, it won't affect but minimally the result. That is what my experience dictates, I have not see those members of the public service friends of the 2+2=4.
I have, again, no disdain for the architect's work, that is precisely mine, nor I have such thing for anyone doing his work the best he can.
I precisely advert that the one that NEEDS be adverted is the one directing the works, so HE/SHE/THEM ascertain if there are affections that need be considered and reconduced to congruence, and I direct the advertence to THEM, because it is their current and standing duty to so perform.
The architect work as a designer ended the day he was not retained as part of the works' party; it may be in your interest, or the property, or good ways to keep him informed, but if out of the project and not retained even for consult or supervision, it is clear that every kind of decision affecting the works are by now assigned to others for proper decision, including whatever the changes to the original project, and I stand with what I said.