Authoring Rego rules for constraint template

[cova-fe]

Hi all, I'm working on some rego rules for RAM and I have some use cases where the usage of a single

deny [{}] {}, as recommended in current rego rules guide

https://github.com/GoogleCloudPlatform/policy-library/blob/main/docs/constraint_template_authoring.md#write-rego-rule-for-constraint-template

could lead to some complex code.

So I'm wondering why it is not possible to use something like

allow {} 
deny [{ msg1 }] {logic}
deny [{ msg2 }] {logic}

and so on.
As this should be a valid rego approach, is there underlying issue that could prevent this approach?
Thanks.