That's a joke. If you read that drivel prepared for the stock market, you would come away thinking IBM is the biggest Cloud operator in the world. In reality of course they have just rebranded all kind of cash flow streams as "cloud" - because they know "cloud" will make the stock go up whereas "mainframe" makes it go down.

They also provide mainframe-based Linux VMs for clients that require the encryption technology built into those machines. If you need to give certain assurances by law or contract, they may be a good option. Apart from that, if you need on-demand VMs for IBM i or AIX, they are one of your only options.