Too little too late
vCA is still pretty much a dead dodo. The world has moved on and (certainly in terms of public cloud), VMware hasn't kept pace. vCA has niche use cases such as DRaaS, but even now there are far more cost effective and elegant solutions such as Azure Site Recovery.
Best VMware stick to what they're good at, and leave "real" cloud to the big three, and I say this as a dyed in the wool VMware guy of many years standing.