Is there any reason why income from custom-generated invoices aren't included in the Total Spent amount in a Member's Customer View tab?

I've asked this before and received no answer at all.  Could we please include those invoices in that amount?  They're listed under Purchases and the Invoices list...why do they not appear under Total Spent?

4 hours ago, liquidfractal said:

Is there any reason why income from custom-generated invoices aren't included in the Total Spent amount in a Member's Customer View tab?

I've asked this before and received no answer at all.  Could we please include those invoices in that amount?  They're listed under Purchases and the Invoices list...why do they not appear under Total Spent?

Total Spent is based on transaction data, generated invoices will be included if they have been paid through Commerce.

17 hours ago, Stuart Silvester said:

Total Spent is based on transaction data, generated invoices will be included if they have been paid through Commerce.

I understand that, but I what I don't really get is why that stat is centered around how often someone uses Commerce to pay an invoice, which is far less useful to me (and others I'll guess) than a stat which tells me how much a Member has purchased my products or services overall - no matter who generates the invoice or how it's paid.