I do know that the core devs want to reduce the orphan cost by propagating blocks by TX hash whenever possible. High orphan costs are sometimes blamed for the hesitation of some miners to build larger blocks.
Of course they do, just like how McDonalds wants to reduce the marginal cost of cooking a Big Mac and a FedEx wants to reduce the marginal cost of shipping a package.
Allowing the network to process more transactions at a lower cost is a good thing.