Every $$$ count.
I been in business of evaluating HW design and cost for years after years after years. Even with large margin % of product, every penny saving still count.
1 penny with 10million qty sell still is $100,000 dollar saving.
I understand that this will save apple money and make them additional money through the sales of adapters and wireless and lightning headphones. However that kind of aggressively anti-user business attitude is expressly what Apple was not in the past. Putting the user experience at the core of every decision is what made them one of the most successful companies in the history of the world. Pinching pennies may make them a bunch of money in the short-term, but it also has the potential to undermine their empire badly in the long-run.