Not logical either. We're not forcing you to post or join tourneys. It's you who wants to join tourneys, and to do so you must abide by the rules laid down by Staff that have struggled with getting them right for a long time, and endured many long nights of hard work fixing shit that (semi-organized) exploiters have messed up. Now that they can't make new accounts on the fly and join, we haven't had a single disruption of that nature since the rule.
Until you know what it's like to host a tourney with cheaters in it, your words are hollow. Or playing in one, for that matter; legit players have been extremely annoyed and frustrated until this fix.
Similarly, you can't just join a PvP Event and not post decks or plan a duel with your opponent because you don't "feel like it".