Not sure how that opinion assuages those of us who have reported experiencing daily drain of on average 15% and as much as 20% even when the device is in standby and/or doing nothing else (e.g., notifications, iCloud syncing) that might explain the seemingly excessive battery usage.
What I find hilarious (and possibly paradoxical) about your comment is that if that's what you believe, then why did you bother doing a DFU over your iPad draining 0.5% an hour? To refresh your memory:
"My Pro 10.5 was losing maybe 0.5% an hour on standby. Now it loses 0% overnight. If it’s 25% and I get up after 8-9 hrs, it’s still 25%."
So if my math is correct, 0.5% per hour drain equates to 12% over 24 hours so according to your own statement, such a drainage rate is "perfectly normal" yet apparently it wasn't acceptable in your case.