This is very similar to how salesforce.com consultants operate. The driver there is that ""no software"" means that customers buy first from vendor. A month into it, they discover they need help and turn to consultants. The main driver is the cloud delivery.
Also, I think that customers who pay on subscription affect this. If a reseller drops below quota requirement, the margin on all the subscription reverts to Sage. Even when the reseller gets back in min quota, there is no requirement now for Sage to reinstate that commission flow.