[Cannoneer]

Experience doesn't support this, i.e. 3 failed attempts so far. There is technology to afford a more stable platform but is expensive. It is a matter of mass and money. Semi submersible offshore drill rigs use dynamic positioning and motion compensated drilling decks to provide a more stable platform.

So far SpaceEx has chosen to use the crudest of barges to provide their offshore landing platforms. Actually it's not rocket science if they really want to recover the first stage offshore.

[amorphous]

I think they need something more as well. At least some way of securing the thing from toppling over from a rouge wave, if they do manage to nail the landing.