If we are assuming a situation where after the deportation of the person in question, he is not allowed access to his apartment in it entirety and there is no one at all that can help him retrieve his items, it only means that his phrase is gone and gone for good. it looks like an hypothetical situation because you are not in such situation. but imagine that you are sent out of your current country and that there is no one that can give you your seed phrase. what can you do in such situation? even though we do not wish that such happens, if i face such situation, my asset will be gone.

These are part of the instances we can look at and agree that keeping your seed phrase offline has it own issues also. if there is a means to, it is best to save your seed phrase in your memory even if it is not entirely safe due to forgetfulness but is better to have it there as back up rather than not having where to get it from at all.