Allow other modules to alter the user profile form

Implement drupal_alter() to have the ability to alter further.

Ah, instead of hacking anything, we can just change the weight of our target module. Implement hook_update_N() in your target module and update the db.

db_update('system')
    ->fields(['weight' => 2])
    ->condition('name', 'YOUR_TARGET_MODULE')
    ->execute();

Your target module = The module from where you want to alter the user_profile_form which will be executed after the alter of simple_pass_reset.