Here are the 3 video game Kickstarters that raised a little over $1.5 million.
First day raised / First + Second day raised
Warmachine Tactics - $346,345 / $540,691
Dreamfall Chapters: The Longest Journey - $336,736 / $479,038
Bard's Tale - $706,030 / $907,270
Bard's Tale is a bit of an outlier since they had a special promotion where you got a free game if you donated early on. However, you can see the other two are fairly consistent - they raised over 20% of that $1.5 million in the first day and were at around 1/3rd of the $1.5 total by the end of the 2nd day.
Maybe Indiegogo trends are very different than Kickstarter, but you can see why I would be worried. I think this game looks amazing and would love to see it made, but I just don't see them raising $300k by the end of today or around half a million by the end of tomorrow. And if you aren't around those benchmarks, then people stop donating because they figure you're DOA.
For a 20+ hour Action/RPG with gorgeous 2D art? Not particularly. However, it's hard to convince tens of thousands of people to pay you $30 in advance for a game that isn't going to be done for a couple years.