Thanks all for your feedback!
We have added this feature request in our to do list. Will let you know when we plan to deliver it into one of our future releases.
This is driving me crazy- I open dozens of PDFs a day, all with comments, and it's such a silly waste of time to have to go through 4 steps to open the comments on each one. It wasn't an issue with prior versions of Acrobat, and is making me consider switching to Nitro PDF (which apparently doesn't have this problem).