Drake weldframe un-intuitive behavior when <static> is included in sdf

box.sdf

<?xml version='1.0'?>
<sdf version="1.7">
  <model name="my_model">
    <pose>0 0 0.5 0 0 0</pose>
    <static>true</static>
    <link name="box_link">
      <inertial>
        <mass>1.0</mass>
        <inertia> <!-- inertias are tricky to compute -->
          <!-- http://gazebosim.org/tutorials?tut=inertia&cat=build_robot -->
          <ixx>0.083</ixx>       <!-- for a box: ixx = 0.083 * mass * (y*y + z*z) -->
          <ixy>0.0</ixy>         <!-- for a box: ixy = 0 -->
          <ixz>0.0</ixz>         <!-- for a box: ixz = 0 -->
          <iyy>0.083</iyy>       <!-- for a box: iyy = 0.083 * mass * (x*x + z*z) -->
          <iyz>0.0</iyz>         <!-- for a box: iyz = 0 -->
          <izz>0.083</izz>       <!-- for a box: izz = 0.083 * mass * (x*x + y*y) -->
        </inertia>
      </inertial>
      <collision name="collision">
        <geometry>
          <box>
            <size>0.1 0.1 0.1</size>
          </box>
        </geometry>
      </collision>
      <visual name="visual">
        <geometry>
          <box>
            <size>0.1 0.1 0.1</size>
          </box>
        </geometry>
      </visual>
    </link>
  </model>
</sdf>

visualize.py

from meshcat.servers.zmqserver import start_zmq_server_as_subprocess
from pydrake.all import (
    DiagramBuilder,
    AddMultibodyPlantSceneGraph,
    FindResourceOrThrow,
    ConnectMeshcatVisualizer,
    Parser,
    RigidTransform,
    RollPitchYaw
)


proc, zmq_url, web_url = start_zmq_server_as_subprocess()


def visualize_gripper_frames(X_G):

    builder = DiagramBuilder()

    plant, scene_graph = AddMultibodyPlantSceneGraph(
        builder, time_step=0.0
    )

    parser = Parser(plant, scene_graph)

    for key, pose in X_G.items():
        g = parser.AddModelFromFile(
            './box.sdf',
            f'location_{key}'
        )

        plant.WeldFrames(
            plant.world_frame(),
            plant.GetFrameByName('box_link', g),
            pose
        )

    plant.Finalize()

    meshcat = ConnectMeshcatVisualizer(
        builder, scene_graph, zmq_url=zmq_url
    )
    meshcat.load()

    diagram = builder.Build()
    context = diagram.CreateDefaultContext()
    diagram.Publish(context)


transforms = {}

for i in range(5):

    transforms[i] = RigidTransform(
        RollPitchYaw([0., 0., 0.]),
        [0., 0., 0.]
    )

print('Number of frame to draw', len(transforms))
visualize_gripper_frames(transforms)

while True:
    continue