2nd point is quite exaggerated, inflation is possible. A few weeks ago 1 BTC was 15 USD, not 12 like right now.
Inflation != price rise.
But nevertheless, the point is not fully correct since there's nothing stopping people from doing fractional reserves or other forms of inflation that do not depend on an increase of the monetary base.
3rd point... Anonymity in Bitcoin world is not easy to achieve and every transaction is stored in the blockchain, so if the state decides to get info how much bitcoins a particular person earns it will manage to do this. I don't even mention that without taxes the state will die so it will fight for taxes till death.
Even if bitcoin provided perfect financial privacy, that alone is not enough to allow you to evade taxes at will. Remember that long ago people
did have financial privacy, but that didn't stop states from taxing them. Property taxes and at some extent VAT are difficult to evade, even if you don't use banks at all.
And in what concerns income taxes, many states simply ignore the principle of "innocent until proven guilty" by forcing you to justify your means of living, and punishing you as a tax evader if you're not capable of doing so.
Even the 1st point ruins the 1st impression about the project. I suspect it was created to scam non-bitcoiners...
Why calling them scammers?
It's true that they should change their words. Not only because they are not accurate, but because it's not safe for yourself to say wide in the open "we can help you evade taxes!". But why this accusation out of nothing?