Gartner's a joke
So they rate NetApp this highly, despite having no intellectual property of their own in the backup space and Actiflo - a company few have ever heard also rated highly? Why is Dell rated so low when they have a global ability to execute and in addition to the whizz-bang functionality on their storage arrays that NetApp can claim, they have AppAssure and NetVault, as well as a 50,000+ global user base of vRanger?
Gartner has little credibility. Veeam's good, but it's a niche product and AppAssure is functionally broader than Veeam in my opinion.
AC - as I work in the industry as a consultant around storage and data protection.