The practical change is less manual coordination. In the intended experience, a customer chooses the other cloud provider, selects the relevant regions and chooses the bandwidth. The providers handle more of the underlying capacity and support process. That could reduce the effort involved in moving data between clouds or designing an application that depends on services in both environments. (aws.amazon.com)
There is an important UAE limitation. AWS's regional availability page currently lists Azure preview pairings for Northern Virginia, California, Frankfurt and Sydney. It does not list a UAE AWS-to-Azure region pairing. A UAE company may therefore need to evaluate a connection involving Europe or another supported location, with latency, data-residency and transfer implications. The absence of a UAE pairing does not prove that the service cannot support a particular architecture, but it does mean the local design must be checked carefully. (docs.aws.amazon.com)
The service could be relevant to high-bandwidth systems such as data replication, shared application components or analytics pipelines. It will not remove the need to plan IP ranges, routing, identity, encryption, monitoring, failover and application dependencies. AWS's getting-started guidance specifically tells customers to review IP allocations and decide whether to use a virtual private gateway, Transit Gateway or Cloud WAN. (docs.aws.amazon.com)