I did miss this first post from you. As the youngins say these days ..my bad.
But still all I was trying to say is in my mind easy has nothing to do with it.
If you find it too hard to add some water to your incubator when the humidity is low in there maybe you shouldn't be incubating anything.
And even where I live where there is plenty of humidity that doesn't mean the room I am incubating in has the same humidity as the outdoor climate. I have had my incubator humidity get as low as 15% and needed to add some water. I assume it has to do with central heat and air unit in my house. And it probably also has some to do with how much you open your incubator. I incubate call ducks so I do open my incubator and candle them more often than you probably would chicken eggs.