A selectable locker up front is much less of an issue than an automatic or limited slip, as its up to the driver to enable it. E-Drive will protect the clutch cones. I think my concern would be the QT chain, the e-drive coupler. The QT is kind of unique in that both front and rear outputs run off the chain, and that the differential receives all the engines torque, including low range where that is multiplied. I have heard of people stripping the e-drive collar. Its actually pretty common for the MM PT kits as they have poor engagement. You can see all sorts of failure photos here:
https://jubileejeeps.org/quadratrac/gallery.htm
With more modern cases, like the NP229, the chain only drives the front axle. And there isn't a mechanical differential, it uses a viscous coupling in full time mode, and locks it up in part time mode. In full time mode, the rear axle never has the ability to have any slip. It has a mechanical connection to the main shaft in the t-case. The front axle receives power through the viscous coupler, which doesn't have a mechanical connection to the main shaft. The coupler is filled with a fluid with a series of metal discs that transfers power to the front if the rear spins faster than the current speed of the front. If both front and rear outputs are moving at the same speed, the front axle is actually not receiving any power.
So for regular driving, a selectable front locker will not impact the QT at all. And in most cases, a front locker is rarely needed. But if you do have a locked, just take things easy, and chances are you will be fine. Check for shift collar wear if you happen to rebuild the t-case ever.