Testing period was around 10 days and not 3 weeks. If You are trying to raise FUD then please at least be precise.
Masternode network without previously setup masternodes cannot work and be safe for users. Common practice is to setup masternodes before going public.

There have been couple of incidents where testnet safe network did not perform well in real environment so that was our decision to run mainnet for 10 days and see how it performs.