This is technically correct, but one has to wonder had this never happened if the administration would considered the information classified.
It's hard for me to think that from a national security concern perspective the information was unclassified, which leaves the administration saying its's unclassified as political CYA. In that case, it's almost a worse look for the admin for using national security as a political safety net.
Some of this is similar to the GWB days in the lead up to Iraq. Unless Bob Woodward's book was a complete fabrication it clearly detailed how the GWB administration would intentionally classify/de-classify information depending almost exclusively on if it supported the WMD narrative. It's a slippery slope when classification determinations are made for political reasons and not national security...and generally doesn't work out very well in the end.