I don't know I just think it cheapens the experience overall. I am loyal to LH/LX because the product is good. I despise United because the product is bad (and I think UA despises all their customers anyways, so the feeling is mutual). In my mind, if having fewer UA FFs in the F cabin and lounges means I have to fly United less because I can't find as many redemptions, I am 100% OK with that trade. I would gladly make that trade.
If UA was actually decent, I might regret it.