the NotBitcoinXT initiative prompted this
message from Alan Back, Ph. D., to the bitcoin developers' mailing list:
The recent proposal here to run noXT (patch to falsely claim to mine on XT while actually rejecting it's blocks) could add enough
uncertainty about the activation that Bitcoin-XT would probably have to be aborted.
So Adam Back, Ph. D., thinks it is okay (if not wonderful) that nodes
lie to the bitcoin community in order to preserve Blockstream's exclusive control of the protocol.
Think of that before trusting your savings to a system whose security strongly depends on the integrity of the BitcoinCore implementation.
The sentence you quoted appears to be a statement of fact. It doesn't sound to me like he's judging whether the fact is "okay" or "wonderful".