Interesting. I am 6 ft 4 and I thought I had more room there than I do at Etihad/MCG.
Depends where you sit, if you sit in the more modern stand down at the city end, which I assume you did as that's where most opposition supporters sit, the leg room isn't too bad.
If you sit in the old 3 tier stand at the other end there is bugger all leg room, I usually try to sit at the other end.
Funny story when I last sat in the old 3 tier stand for a Saints v Freo game surrounded mostly by Freo supporters, Freo were getting flogged (this was back in their shit Chris Connolly days) and I was downing my bottles of bourbon and coke at a rate of knots while being my usual drunk, obnoxious and shouty self annoying the f*** out of all the Freo supporters around me. I went for a slash at half time and when I came back a fat middle aged Freo supporter at the end of our row had his leg up on the seat in front of him blocking me from walking past. I expected him to just be polite and put his leg down to let me go past but the cockmuncher said "I'll only put my leg down if you promise to shut up". I felt like saying "How would you like a broken leg you campaigner?" before stomping on it but I just said "Yeah ok I'll shut up". I then proceeded to still be obnoxious and shouty for the rest of the game just to piss him off even more.