Workflow rules in spredsheet - Parallel Stage vs Spreadhseet Blocks

Hello,

with BPM we configured a rule that send the approval request to all the invoice line requester users in parallel.

With the "Manage Workflow Rules in Spreadsheet" functionality we have used the "User" "Approval Routing" but the notification is sent on serial when there are different requesters on different lines of the invoice.

Is there a way to send the notification to all the invoice line requester in parallel?

This will decrement a lot the approval workflow!!

Invoice Approval Rules:

Spreadsheet behavior (not what the customer wants ):

BPM Behavior (desired one):