I updated the test site, followed your recommendation and I can confirm that the Jetpack Form shortcode does not work when inserted via an ACF field.
The code used to display the ACF field is:
<?php $wysiwyg = get_field('editor');
if ( $wysiwyg ) {
the_field('editor');
} else {
echo 'ACF field is empty';
} ?>
The shortcode used to display the Jetpack Form in both tests is:
[contact-form to='[email protected]' subject='Shortcode Test 1'][contact-field label='Name' type='name' required='1'/][contact-field label='Comment' type='textarea' required='1'/][/contact-form]
