When a user creates a flow from the teams channel tab, the flow is automatically shared to team members without any warning. This poses a risk that users may unintentionally share the flow's connector permissions with their team.
If flow use SharePoint connector, Team member can add actions read,write,edit and delete all items in SharePoint Lists with flow's owner permissions.
If flow use Teams connector, Team member can add actions to post message to teams as flow's owner.
I believe that ,enabling administrators to control function that flows are automatically shared with team members when users creates flows from teams channel tab, improves Power Platform security and gavernance.