Yes, regarding the former, certainly so. Regarding the latter, the explanation is poor, and above all, it’s activity that damages the company’s brand when the issue ends up in major newspaper headlines.
@Jugi25 wrote earlier, among other things, “Reportedly, invoices are paid to small operators with 60-90 day payment terms,” and that is not only unpleasant behavior but also illegal activity unless specifically agreed upon. The blameworthiness is not removed by the fact that this is an everyday practice for many large companies, i.e., small businesses are used as their own bank.