Expand 'Debilitate' as mechanic

Debilitate (20% less Movement speed and 10% less damage) is in the game for quite some time now and used in more and more scenarios, encounters and on items.
It is an interesting debuff that could make use of further expansion, especially introducing defences against it.
This is especially relevant in my opinion with the introduction of the infamous belt mod "x% faster expiry rate of debuffs on you; You are debilitated".

It would make a lot of sense to add debilitation protection to the protection masteries on the passive tree.
There we already have options to protect against certain debuffs and DoTs but Debilitate is not yet among them.

"50% less effect of Debilitate on you" would already be great to have as an option!

Edit: as immediate result, the afore mentioned belt modifier would actually be more worth using. As of now, the downside is just too harsh and if balancing is an issue, numbers can be adjusted.