It's still ticketed on 006 so shouldn't matter?

For KLM-marketed flights that are ticketed by Delta, please refer to the Delta Accrual Chart for Total Miles Earned and Medallion Qualification Dollars.

Furthermore since 2 May KLM introduced a new ticket structure:

Bijlage%20bij%20ACN%2019apr16.pdf

Honestly have no idea if this new structure might give some problems for Delta's IT system when giving out those miles.
Last intra-EU KLM operated flights ticketed by Delta still earned me miles according to Delta's accrual chart.