Just because it's design does not meet your specific use case does not make it stupid. Actually it is quite the opposite.
I am fairly sure it will fail due to emission policy and I really hope I am wrong.
Once the hype fails it will have a hard time to absorb 1 grin per second for the rest of its time especially in the first years - there will be little incentive to hold and to mine to secure the network except for idealistic reasons: Even if it somehow succeeds it will be in hands of a small group for the reasons given.
The argumentation that it is used for spending because inflation is high would imply that there a places to spend the currency. The reasons that crypto is not used for spending is not the inflationary policy but regulatory boundaries and that there are basically no places to spend them - I personally do not see why a new coin with a new protocol should change it - it will compete against a 4 digit number of existing cryptocurrencies. It would even have a hard time if the emission policy would have been chosen wisely.
Nevertheless it is probably the most interesting project launched in the last two years and therefore I will follow it. The protocol is really innovative, the community driven decentralized and anarchistic mentality is probably the only way to launch a new cryptocurrency, the name is great and I fuckin love the logo but cryptocurrencies are first and foremost money with its specific characteristics and I think you fucked it up there big times. Nevertheless I hope to be proven wrong over time