Anybody remember the much ballyhooed Apple partnership?. We had all those photos of Ginny walking in a garden with Tim Cook. Emails were sent about it everyday for months. IBM created whole hierarchies of people within IBM dedicated to support the Apple partnership. And, what came out of it? Nothing except Apple got to sell a whole bunch of Macs, Iphones and Ipads for IBM employees but IBM didn't get any boost from Apple. According to Cringley, Apple had just 1 employee dedicated to IBM the whole time. That is how much they cared.
The point is that the only organically viable partnerships are where IBM is just re-selling the partner's products and services. The partners don't mind because they simply treat IBM as just another channel through which they can sell their own products. However, there are barely any partners who want to sell IBM's products and services in return. The only exception is small/medium hardware and storage resellers but even those partners have pivoted to competing clouds (and not IBM Cloud).
Heck, even IBM's own "internal" partners don't care. Red Hat has not helped IBM increase its non-Red-Hat revenue but is happy to let IBM'ers be forced into hawking Red Hat products (Ansible!). GBS/Consulting has been providing consulting, solutioning and app management services on competitor's products for a while. GTS left to become Kyndryl and promptly signed a deal with AWS/Azure to manage those clouds for their customers.
So, when this dude says "we are open to partnerships", he is just hoping IBM can make some money by being a glorified reseller.