For such a test the limitation is not the thrust level, but the facility where it happens yes.
The Marshall test stand is specifically built for handling these kind of tests, with a huge flame diverter, and hold-down systems that are specific for the task.
It will not happen because they don't want to risk the launch table if there is a problem, but you can build the facility to handle the force, no problem. Just a question of funds, location and schedule, not thrust.
b-Lox t1_j83odv2 wrote
Reply to comment by Shrike99 in SpaceX on Twitter: Super Heavy Booster 7 completed a full duration static fire test of 31 Raptor engines, producing 7.9 million lbf of thrust (~3,600 metric tons) – less than half of the booster’s capability by allforspace
For such a test the limitation is not the thrust level, but the facility where it happens yes.
The Marshall test stand is specifically built for handling these kind of tests, with a huge flame diverter, and hold-down systems that are specific for the task.
It will not happen because they don't want to risk the launch table if there is a problem, but you can build the facility to handle the force, no problem. Just a question of funds, location and schedule, not thrust.