it sells more boosters... if you're missing loot from a dead pet, you will be more inclined to pay for boosters to get more loot when your pet is alive... just like nightwave creds not telling you they 'expire' after the season.
New Player experience is literally losing everything you work for(in nightwave) because you weren't spending all your creds as you go and didn't know they become useless and have to sell them for credits after the season... yes this happened to me, yes i'm still extremely tilted over it.
i understand DE needs players to spend money, but why does it have to be predatory? why do we need 2 premium currencies? why does the skin PACK have to be an expensive FOMO pack? (and the devs just laughed that comment off and said the skins looked so good!... thanks you just explained how its FOMO)