Scrap, what you are talking about is completely irrelevant. The issue at hand is people planned a offensive, took the right steps for capture, secured the critical advantage needed, and yet was still thwarted by an awkward problem previously unforeseen.
rpm, to a certain extent, yes, it is smart.
Personally I'm not mad at whels at all - while it is frustrating, my personal philosophy is that as long as something is possible within the game, no one can deny someone else for doing such things.
The only thing that may or may not stop a person from doing something like that, will be his own judgement in relation with common sense and conscience. If whels figured that Knits really needed that port, and was determined to stop capture then it is completely understandable. I feel no guilt when I spam the entire VH area with GV supps to defend it - its the same thing in my opinion.
However, this is a matter regardless of being smart or unsmart. I don't think there's any way one can say that such things being possible is reasonable, nor is it to be considered a valid strategy. It was an obvious overlook not often encountered in the game, but would need a fix sooner or later.
So, on a non-personal level, at objective grounds, what whels did should not be possible, and should be fixed.