[sv-ac] Clock flow

Hi John/All,

In section 17.12.3 (Clock Flow), P1800 draft, it says that:

The scope of a clocking event flows into an instance of a named
property. The scope of a clocking event flows into an instance of a
named sequence provided neither method ended nor method matched is
applied to the instance of the sequence.

Is there any specific reason that the instance of a sequence with
methods ended/matched are getting excluded in the above case ? 

Thanks.
Manisha