Originates from some typically representative insecure code found in a build system that my team and I are/were smited with.
The code in question was blithely making a file word-writable (because security it seems is HARD), with the wonderful comment above it stating "This should be OK for us".
This phrase has now come to be a sarcastic response to anything which is really not a good idea, or where the quality is subpar.
#
# This should be OK for us
#
chmod a+rw "$SECRET_IMPORTANT_FILE" \
|| log_error "Cannot make $SECRET_IMPORTANT_FILE world writeable"