Vannila boats have no gravity when the world is created from a mctemplate

Partner Rank: 1

Verification builds:
1.16.200.2

Summary:
Vanilla boats have no gravity when the world is created from a mctemplate with world version 1.16.40.

Impact:
This may have a major effect on reviews, players are unable to play the map correctly.

This will affect any marketplace map with boats.

The following Noxcrew content has boats as a gameplay mechanic: 

Frozen
Millionaire Mansions 2
Millionaire Mansions
City Living
Winter Mini-Games Festival
Spring Mini-Games Festival
Summer Mini-Games Festival
Ready Sled Go!

Repro Steps:
Create a world from the Boat 1.16.40.mctemplate mctemplate attached.

Load up the map and summon a boat.

/summon minecraft:boat

Ride the boat of the tree.

Observed Results:
Boats don't have gravity when the template world format is 1.16.40 or lower

Frozen_1.16.200.2.mp4

Expected Results:
Boats have gravity when the world is created from a template.

Screenshots/Videos attached: Yes

Regression Build:
Yes, the boats have gravity when the 1.16.40 template is created on 1.16.100