I notice that there is no reported apology for the fraudulent manipulation/change of raw data or even an acknowledgement that such fraud exists.
This whole “we got it a bit wrong” meme is likely because with a new honest “sheriff” in town (Trump) they know honest appointees will be coming in and the CYA begins.
To use the poetic style of James Delingpole, the reason these junk scientists will not issue any apology is the same as why dogs will not stop licking their balls. Because they can.