You're the one that entered it and started throwing punches. Okay, so the punches were like those of a 6 year old girl, but still, the difference is splitting hairs; a punch is a punch. So you got attacked for it.
HDMI may be more ubiquitous, but it didn't get that way over night. It took time. Hanging on to something for that reason alone is fine if you're not interested in advancing something forward. Technology is constantly moving forward and that is all that's happening here. If you were around before HDMI (I can't imagine you were), this same thing happened and it will happen again sometime in the future.
Your arguing only shows that either you're not really serious and are just playing with everyone, or you're just a closed minded, naive person that doesn't like change.