What Hagoromo entrusted Ashura with was leadership over Ninshuu which is what Indra didn't like which is what led to their constant fighting that Hagoromo was talking about in that scan. It's all about context. Hagoromo giving Ashura more "power" was never hinted in the first place and was never the catalyst to Indra's rage at all. Hagoromo makes it very clear here:
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Ashura becomes leader, instead of following in Ashura's footsteps, Indra lashes out in fury instead. I think the problem is here is that you believe power comes in the form of a shinobi's combat ability when leadership can easily be considered power hence why Madara wanted or at least in his eyes, should've been Hokage because it would have enabled him to have power and control over how the Uchiha had lived.
As for the topic, Ashura = Indra as was stated. There were no hand-outs unless you're selectively reading and ignoring context that adds clarity to what Hagoromo meant.