Every MLP is getting set up with their equity offerings as there is normally some selling in December by those who did not like dealing with K-1s at tax time.
Refinancing of debt is also a priority for many along with, as already said, getting lots of free cash. MWE for example just refied at 200bps savings and now have enough cash and credit ($1.6B!!!!) to handle expansion plans for the next two years.
A drop of a couple point for a secondary is a true yawn for investors. A buying blip, but almost anyways nothing else unless you are a trader.