Everyone did! Though I'm sure if they had caved on that point, it would be brought up ad nauseum as dispositive proof that Obama was a secret Muslim Republican.
I'm actually surprised that it went through, since a lot of the main beneficiaries were apparently in Indiana, with Evan Bayh looking out for them. I wonder if he squeezed out any specific concessions or if he just had to swallow it, since the savings were needed to make the ACA deficit-neutral.