If there is any doubt as to if it is legal, how would it be viewed, is it safe, can I make that shot, is it big enough the answer is always don't shoot. It doesn't matter what someone else would do, if there is any question don't do it. Now if the question is just to stimulate conversation as to other people's opinion that is different.
In hunter safety we preach that if there is any doubt don't do it. The other thing I stress is your answer may be different five years from now depending on personal experience or information you have gained from others.
You did the right thing by not shooting. Down the line given the exact same circumstances you may make a different decision or make the same one.
I posted the question to see what others would do. I know what I would do and I'd do it everytime I just wanted to hear other opinions. My decision will be the same in 5 years since I've been hunting for 32 years now with a lot of experience.