It would help to expose any Entity Attributes that are part of the RP's metadata to Velocity templates by default, similar to the existing MDUI support via rpUIContext. That way deployers can easily tune e.g. the attribute-release intercept views based on Entity Categories.
Personally I'm currently only interested in Entity Attributes with an Attribute/@Name="http://macedir.org/entity-category" but exposing all Entity Attributes is more generic and more flexible and therefore more suitable for a default.
(Probably a Map with the Entity Attribute Name as a key and an ArrayList as values, of something like that? The amended default view could then also expose Entity Categories by default, the same way e.g. $privacyStatementURL is already being set from $rpUIContext.privacyStatementURL now.)