This is an interesting move. Many companies are still operating on-prem, hybrid cloud or they need to have a multicloud strategy (to operate in certain geographies or to avoid vendor lock-in). If Cloudera can get to the point where they have a big data infrastructure that is competitive with the native offerings from GCP, AWS, etc but easily supports on-prem, hybrid-cloud and multi-cloud, I would imagine there would be many ready corporate customers.
Going private could give them the opportunity to make significant RnD investments away from the quarterly demands of a public company. On the other hand, the private equity backers could enact a bunch of cost-cutting, gut the company, cause its top employees to leave and load the company up with debt. It will be interesting to see how this shakes out.