I dont think it will be wise to move it to constructor and make cluster level coz of following : 

1. this is more of a test setup level property, similar to startup.properties in falcon. All the clusters will have or not have security patch applied. This property is not trying to handle secure / unsecure mode of falcon, this is for a old falcon build that doesn't even know secure / unsecure mode exists.

2. If we make it cluster level, unnecessary code changes will be required in all the methods in BaseRequest.java since currently they dont have any parameter related to any entityhelper.

3. Also this property is more of a setup flag, which will be true or false for whole test regression run. Passing is would have made sense if it could have changes from one rest call to another. 

4. InMobi will also more to apache falcon in around 2 months, then this might not be used. We dont want to make extensive code changes which need to later reverted.