It does look like the parade viewing is for both. I did call in, not bookable yet, I assumed that is what I'd get, but thought I'd try.
Edited to add: It is odd that the Premium pkg has the parade listed as follows;
Break Out Y’er Broomsticks!
Enhance your Halloween fun with a spirited spell-ebration— select nights August 17 through October 31, 2018!
Descend upon
Magic Kingdom park for a spook-tacular evening during
Mickey’s Not-So-Scary Halloween Party. You’ll kick off your night with a viewing of
Mickey’s “Boo-To-You” Halloween Parade from a reserved location along Main Street, U.S.A. Then, drift over to the
Tomorrowland Terrace Restaurant to indulge in a bewitching buffet of swoon-worthy sweets and sips—including chocolate-dipped strawberries, chocolate mousse, cupcakes, ice cream, seasonal fruits, cheeses and other ghoulish goodies created daily by our master pastry chef. Sparkling cider, signature lemonades, coffee, tea and hot chocolate will also be served.
And Plaza:
Break Out Y’er Broomsticks!
From flickering tricks to the sweetest treats, enhance Halloween fun with a private dessert party that’s spook-tacular!
Got goblins? Grim grinning ghosts and Guests alike are invited to descend upon
Magic Kingdom Park for the Happy HalloWishes Dessert Party, a bewitching buffet of confections and entertainment sure to send spirits soaring. Experience this hair-raising happening at the
Tomorrowland Terrace Restaurant on select nights August 17 through October 31, in conjunction with
Mickey’s Not-So-Scary Halloween Party—even the most voracious vampires won’t want to miss it!
Raise your glass for a ghostly toast of sparkling cider while indulging in Halloween-themed eats, including chocolate-dipped strawberries, cupcakes, ice cream, seasonal fruits, cheeses and other ghoulish goodies created daily by our master pastry chef. Specialty drinks, signature lemonades, coffee, tea and hot chocolate will also be served.
As showtime nears, Cast Members will escort you to a prime location in the Plaza Garden—where you can enjoy priority views of the
Happy HalloWishes Fireworks spectacular over
Cinderella Castle. It’s a fright fest of color, music and light you’ll never forget!
Hopefully the "Know before you go" isn't pasted and copies in error on Disney's end.
Guess we will find out soon.