FlexMetrics not counting non-Javadoc comments?

After downloading and installing the 1.1 version of FlexMetrics it appears as though comments are still not being counted correctly.  As best I can tell, it is only parsing one type of comment:

/* Comment */ are considered MLCLC

/** Comment */ are considered Javadocs/JLC

It looks like none of the following are counted:

// Comment

<!-- Comment -->

<!--- Comment -->

Which means mxml comments are not counted at all and single line comments are always 0.

Is this by design, or is this a bug?

Thanks in advance

Brian