Avast for Business is designed to simplify deployment and management tasks for a small to medium sized business or organization; therefore there is no administrative console or backend installation required at all locally - everything management related is cloud based. Now, to be fair, FEP & it's SCCM backend has more enterprise-specific configurability that we may never have as it breaks our simplification mantra as well. From a scalability perspective if our feature-set fits, we can go to any number of devices - no limitations there.
Also, in the case of Avast for Business, the cloud component is the console. The anti-malware side still has a local agent that installs locally on a Mac or PC and functions in a manner similar to all other Avast products, but is managed in the cloud to simplify a business owner or IT managers life .
Thanks.