i felt this way after first coming across StrengthsFinder in college. came back alittle over the past 10yrs. i think it's a potentially dangerously comforting belief in 2 ways:
1) you as a 99.9th percentile maxperfer will get unfairly leveraged by <50th percentile generalist because you might not spend the effort to handle table stakes weaknesses - correctly evaluating generalist partners and managers is not strictly a maxperfer trait
2) i think consistency can and should be strived for even if not attained. aka "chip on the shoulder theory". belief that nonconsistency is ok may cause less maxperformance, vs always trying to be consistent but failing to