While you are correct that the resources are useful to a lot of people, the issue with the update that basically every endgamer in here has, is that its the cost of them paired with the other tasks that make them for endgamers to complete, and therefore the resources should be useful to endgamers as they are the 1s completing them.
Saying that people have no right to complain about it because others need those items, when those others are unlikely to be able to complete the tasks to get said items, is not fair. Just because you arent upset by that part of the update, does not mean others arent allowed to be.
While it wont speed up resource collecting in regular play, it will reduce the amount of total play needed. For instance, when Dungeons came out, I done them all daily and bought the packs because I needed the diamonds to get missing mythics. Once I had all the mythics, I was able to change my daily play away from Dungeons, and onto other things that needed my time, like Delves. Then when I finish them I was able to move onto something else, like explore. Etc Etc. Reducing the time needed before being able to move on from that mode is always good.