I'm one of those who doesn't pay any attention to those EV cards at all. I know I probably should, just out of completeness, but I don't. In fact, with Firefox anyway, that spot where the EV indicator goes is used for enough weird little things that I've sorta developed a blindness to anything that appears there (I'm not saying that's a good thing!)

However, if I'm going to a site that really matters, I'm not clicking on some link on a web page or email somewhere. I'm using the link I've bookmarked. So, ignoring the EV cert is probably not putting me at too much risk.