I agree and I'm not sure why you're being down voted for this remark. Apple should have been upfront about the issue from the start, with a solution that didn't involve third parties to fix from the beginning.
Apple has always relied on third parties to make their platforms viable and useful to consumers. The relationship is symbiotic, not destructive. Apple should be encouraging stronger cooperation between it and these third parties.
At $29 is is unlikely that Apple is making a profit on battery replacements. The third-party kits cost close to that much, and the labor makes up the difference.
They did invent a workaround to them that impacts other features without informing users though.
I'd also query the batteries more directly anyway though - if throttling is needed this aggressively, that _may_ indicate they aren't really up to the task (e.g. they don't have enough capacity to allow for the natural dip without it being an issue / Apple are claiming battery life figures that are basically unattainable in the real world, and propping them up by slowing the device).
Apple has always relied on third parties to make their platforms viable and useful to consumers. The relationship is symbiotic, not destructive. Apple should be encouraging stronger cooperation between it and these third parties.