Yeh I saw2 that too and near4ly freeked out. Thought there had to be an easier way so had a good look at the situation.
This morning I went back to the jeep and thought :"nothing ventured, nothing gained". As mine is on the Drivers side (as in Aust), I removed the plastic riverts holding down the top cover to expose the second bolt for the water reservoir, removed same, reached in and unlocked the lock ring and extracted the troublesome bulb. Took all of five minutes.
When you removed the water reservoir, removed the bottom (larger) hose to enable you to lift it out of the way.
Replacement is just the reverse.