BPMN21 — Page 117 & 118. Confusion over subtypes of Collaboration 2

Table 9.3 (p.117). Row “participantRef”.

It says
“Specifies how the PartnerEntity participates in Collaborations and Choreographies.”

It should say
“Specifies how the PartnerEntity participates in Collaborations.”
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Table 9.4 (p.118). Row “participantRef”.

It says
“Specifies how the PartnerRole participates in Collaborations and Choreographies.”

It should say
“Specifies how the PartnerRole participates in Collaborations.”
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In Beta 2 GlobalConversation and Choreography are sub-types of Collaboration; and GlobalChoreographyTask is sub-type of Choreography.
Then “Collaborations and Choreographies” is incomplete and ambiguous.