Nobody except you is suggesting a mealy-mouthed warning - that's a straw-man.
An accurate and informative statement like:
"Google's Scans detected malware <X>, which is known to do harm <Y> within the past <N> hours at <Z> percent of the pages operated by <COMPANY>. Google recommends that you do not click on this link until this warning is lifted. [Site owners click here for detailed information]"
...would be just as effective.
Scare tactics, especially those that might be laying blame incorrectly, simply breed ignorance, and ignorance is the enemy of security.
An accurate and informative statement like:
"Google's Scans detected malware <X>, which is known to do harm <Y> within the past <N> hours at <Z> percent of the pages operated by <COMPANY>. Google recommends that you do not click on this link until this warning is lifted. [Site owners click here for detailed information]"
...would be just as effective.
Scare tactics, especially those that might be laying blame incorrectly, simply breed ignorance, and ignorance is the enemy of security.