Their biggest failure was continual rebasing of the coin and website versions. They should have focused on services giving the coin value. there are hundreds of altcoins that do the same thing. They thought devs would flock to them but they wont. They should have taken triple a titles with millions of players and built services that used ion rather than rebasing countless times and circle jerking over features nobody would use.
I don't think they ever had a chance with games. They got lucky during the 2017 bubble and that's it. I don't think any game with millions of players needs any services from the likes of ionomy. By 2016 the mobile gaming market had already evolved beyond anything a handful of amateurs like ionomists could offer.
They also missed the boat with the whole dash cloning nonsense. No one needs any new copypasta coins and even if they somehow magically managed to develop something worthwhile no one will care if it's not based on BTC or ETH or some other solid widely used platform and their ION shit reeks of a typical premine scam. Besides they don't have the chops to promote anything. Remember stickers on race cars? How did that work out LOL.
The irony is that if they just kept the BTC they collected in 2016 they would all be living the dream Garza promised them. Shitcoining 101.