Yes! Printer-friendly version is on the list. Not the priority right now while it's still in playtest, but it is coming before any kind of release. Nobody should have to burn a full ink cartridge to run a game.
Thread tracking issue, you're right that index cards at odd table angles are a real problem. The intended setup is one shared tracker that everyone can see (the GM included), not players managing private cards. The tracker is meant to be public, like a scoreboard. I might not have been explicit in the rules, so I'm going to make it explicit in the GM-Led section next pass: the tracker lives at the center of the table, players own their threads but the list itself isn't hidden from anyone.
The master GM list idea you're describing could be good if your group prefers the GM holding the full picture and players maintaining their own shorthand on cards, that works fine. The Loom doesn't break if information is redundant. Just make sure the GM version stays visible when a clock fires, because that's the moment you need to see what's been ignored i think.