Broke wires to WIF sensor on GMC LBZ. Leave as is?

I think over the last 8 Duramax trucks I have owned or still do own, the only truck that I ever saw the light come on was on a 5500 with an LMM. I would replace it very soon, just because if you take in water and take out the injectors or a pump you will be wishing you had. While it is unlikely, if you have luck like I do at times, it would be time, effort and money well spent to address it now.