It is possible for logs to have a non-standard severity text like "ok", "200", "400" etc, along with a standard severity number
For example, the severity parser sets only severity number by default and sets severity text to the original value being parsed (like "200") unless an explicit config for overwrite_text is set to true. The overwrite_text option is not even available in older versions of otel collector contrib

In such cases, the log level indicator should be based on severity number instead of defaulting to info