Rally support bug?

Rally support has a few undocumented behaviours:
1) Endurance charges aren't consumed if you are on full life
2) Endurance charges are either all used or none used

It seems like this not used while full is intended to be helpful, but it means that if you have any minor DoT on you they get instantly consumed. It would be nice if:
1) Endurance charges are not consumed unless you have lost at least 10% of life
2) It only consumes enough endurance charges to bring you back to full life

This would stop the DoTs from basically making rally worthless.

i dont think ggg is paying any attention to anything endurance charges related