Yes, that is true.
Still it shouldn't be a problem to have another wire come out of the usbtiny's black plastic box. I haven't looked at the schematic, but maybe the attiny even has a free pin that could be persuaded to do a little dance for that purpose. And as dangling wires suck, just use a 2nd jumper so it can be removed if not needed.
it seems several of the pins in V2.0 are not used at all, so this could also be hacked and made work by a firmware upgrade.
Just toggling one of the free pins with direct port manipulation somewhere in the code might not mess up the usb timing.
A more colorful logo would be nice too. There's too much gray in this world already.