This is a non answer. yes, hypothetically they can, but the whole point of finding alternative channels is to make it difficult for them to do so, to the point that they might not even try.

That pessimism of "they can jam it anyways" is like saying do not wear a helmet while riding a bike, if you are meant to die that day, you will die regardless of head protection.

Plus, it will take resources for them to jam things, and the more resources they need to do that shit the faster it will deplete them and the less they can do, it is so obvious I do not know how to write it without sounding demeaning.

Maybe so, but incompetence is persistent within fascist organizations, and it adds an extra problem for them to deal with, which has value for that fact alone.