Why on earth would you amp up the investment minimum from 1 to 5 eth with no prior notice?
There is a warning you specifically accept when displaying the contribution address, direct mail was sent to all registered individuals, it was boldly stated in on the blog and slack, AND the webinar (and, frankly, if someone wanted to invest in this token, the webinar was not optional) mentioned this constantly from 59 minutes till well over the countdown (it closed minutes ago).
There is no excuse whatsoever, nor any blame for the team, if someone sent in less than the required minimum. The change, as you can read from their blog, was a neccessity to preserve value for investors and fend off potential attacks.
if so many people are sending 1, than we can expect a good portion of these are actually automated submissions set up exactly to perform the attack by malicious individuals. those who are nothing more than innocent fools... well, a fool and his money...