Is it correct to say that people moving their BTC before the first block is mined on the new chain loses their BCC/BCH for the private key where it was moved from?
No, if there's no common blocks anymore.
People shouldn't touch their BTC unless ABC nodes stop accept Core blocks. They say it happened. So now we can move our BTC.
But I'm not in a hurry - Byteball airdrop is coming
If I move my BTC in electrum now from one address of mine to another address of mine... I am only moving my BTC, right?
The BCC are split off, remaining on the old address on the yet to be created BCC block chain?
yes