Actually there's a lawsuit against Zulily basically saying that shareholders who purchased at a higher price than the shares were acquired for are not satisfied with selling at that lower price. https://www.internetretailer.com/2015/09/23/shareholders-see...
Sell-side analysts are not going to pay shareholders $30 for their shares though. Tesla stock is not cash, but is better than nothing. If anyone is losing in this deal I think it will be non-Musk Tesla shareholders.
As a TSLA stockholder, I hope they do; I'd rather TSLA wait to buy up SCTY assets when they're in bankruptcy rather than pay a premium to SCTY stockholders (sorry Elon!)
There's a risk that another company will offer to buy it before this happens. The board of Tesla probably feels this is the right time to get in on a promising business.