This was a severe conceptual flaw and a cryptological mistake subsequently exploited by codebreakers.
Their chief editor von Storch wrote an editorial saying the Soon paper shouldn't have appeared because of "severe methodological flaws".
The synonymy, however, was subsequently criticized for severe methodological flaws:
Hiding the E911 Document from the jury may have been a clever legal maneuver, but it had a severe flaw.
Two months later, the executives realized the business model had severe flaws.
James Kirk possessed the severe flaw, in Spock's eyes, of impetuosity.
While among the earliest submarines to successfully make use of electric power, she proved to have a severe flaw.
It had severe structural flaws and was demolished in 1868.
This synonymy was later criticized for severe methodological flaws:
At that time, severe flaws will be introduced to the joints to test the system to its limits.