We did it for ours, back in our pre-MMM/pre-FIRE awareness days. My husband took $50k out of his and I took $42k out of mine. We currently have $76k outstanding on these loans, but with our current savings rate we should have them paid off no later than mid-2019. Aside from our 3.25% mortgage it is our only debt, and at least the interest (4.25%) does go back to ourselves...but my 401k has been much better than 4.25% over the past four years, and we missed out on those earnings. Ugh.
I think there may be scenarios where it makes sense, but generally not. In our case, we had 4 days overlap between closing on the new house and selling the old one (with a considerable amount of equity). We needed the $92k to get us up to 20% down on the new house. If we (and I say we, but fully acknowledge that it was mostly me) had been smart, we would have turned around and paid the loans back off ASAP after selling the previous house. That was the original plan. We didn't; instead, I pushed to put in a swimming pool at our new house. This was 4 years ago, 2.5 years before I discovered MMM and FIRE, so there isn't much to do about it at this point other than cringe, shake my head, caution others, and pay the damn loans off. Fortunately we are on target for FIRE in 7-13 years even with this part of the picture, because we are both high-earners.
So, I would probably not recommend going this route. I will say, if you do, make sure you confirm with your employer whether you'd have to pay it off immediately if you stopped working there. That is not the case with our employer; we verified this and I have a former co-worker who confirmed this was true after he left the company. It is definitely a risk to be aware of though.