Generally an appeal like this is just a short pause while they work out whether there's more that needs to be done in the case, and so it hurts less to stop the ban for a few days while that's happening. Then if it actually goes up to an appeals court for more expensive lawyer-work the issue would indeed still be undecided and the pause should continue. For a company that's not a behemoth like Apple you could certainly imagine a poorly-decided import ban causing them to run out of money to fight it, after all.