Yes, Obamacare would impede economic growth

The tax on so-called Cadillac health plans made sense as a way to reduce the existing tax incentive toward excessively generous health insurance, which in turn encouraged excessive use of healthcare. That reform is, apparently, now gone. Instead, the current administration proposal is to increase the tax on capital income, reducing the incentive for saving and investment.

In other words, the new proposal would do less to bend the curve of rising healthcare costs and more to impede long-run economic growth. This change was probably made to attract more House Democrats. It will likely make the plan even less attractive to congressional Republicans.