The problem isn't that the steps they're requesting are onerous, it's that the process by which the ballots are stored and counted is already set forth in NLRB

The problem isn't that the steps they're requesting are onerous, it's that the process by which the ballots are stored and counted is already set forth in NLRB regulations and backed by law. Arbitrarily changing the conditions, even if each step seems practical, requires ratifying the changes, delays the counting, and potentially invalidating the vote.