Attacks from releasing decrypted CCM payload before verifying tag
Is this recommendation given because of user temptation to use unverified data without checking the MAC?


Yes. Note the word "released" instead of "stored".


  Or are there deeper ramifications?


That should not be possible; CCM uses CBC-MAC with known length and CTR mode encryption. There are - to my knowledge - no known plaintext attacks possible on these algorithms (given that the underlying block cipher is secure, of course).