It's not uncommon for an HD version of a game to be behind in features compared to the standard edition. Plants VS Zombies is one of the biggest examples of that - the HD version hasn't been updated in nearly four months, is missing all sorts of features, and is $4 more expensive ... ?
The main reason to go HD on this one is file size - the standard edition is almost TWICE as large, for reasons I still can't figure out. Doesn't seem to have any additional features ...
I like this game a lot, but wish there was some sort of "standard" or "pure" mode in it. To get the best score in this, you'll want to buy a full set of golf clubs and maximize your "terrain clearing / card removal" equipment. So rather than trying to get perfect scores now, I'm just moving on when I clear a stage, knowing I can come back when I'm "better equipped."
A "pure" mode where all equipment was disabled would be a good (if frustrating) 'alternate mode' to play through the game in, even if it might come down to pure luck a lot of the time.