The fact that Apple changed their stance from “here’s a workaround” to “here’s a free bumper” is a sign they reacted to something, and that could have been anything from the conclusion of internal testing to a PR job to keep customers happy.
If they had said there was no design flaw from the start and stuck with that the whole way then I’d understand people’s reaction, but all I see is a company that said “don’t hold it that way” as a workaround then eventually issued free bumpers, thus confirming the issue. That doesn’t suggest they were blaming the user for doing something wrong. The sentiment just wasn’t there.
Everyone makes fun of Sammy batteries exploding, but forget antennagate, bendgate, software gimping of battery life, butterfly keyboards, touch disease, yellow screens (which I believe were when Apple had to split supply Samsung/LG), exploding Macbook batteries (not enough to cause a fuss tho). Etc.
Other companies can of course be ne'er-do-wells, but people actively defend Apple for the company's missteps.