at early stage of a new technology, there will be problems

Maybe, you can call light bulbs a total scam at times of Edison.

Even it is a scam, if Nissan can do it with Leaf, why can't we try it?

Anyway, do you have any data/facts/theory to back up your claim of problems? BYD's all electrical taxi has had a year's trial run in SZ, I am all ears to anyone who has any concrete negative things to discuss.