The laws the article is talking about are the big problem - they're Federal and permanent (at least until we have a sane Government elected to reform and repeal them).
The COVID lockdowns are all operating under temporary state of emergencies under the State Governments. There's no actual reason to think they will be 'extended forever' like some crazies seem to think. For several states, our State Governments are actually much more competent and better in many ways than the Federal Government. Of course, a big part of the reason lockdowns are needed is because the Federal Government botched some vaccine deals with Pfizer etc. so we started vaccinating very late and have been continually supply-constrained since then.
The lockdowns have actually have tended to work effectively - for instance, in my state we've had a few lockdowns and have been able to quash every outbreak so far. So we've been mostly COVID free as we are at the moment, so there is no lockdown right now. Right now I can freely travel to any state except NSW, ACT and Victoria (which are hotspots). I would have to quarantine to go to WA though, but hopefully our state goes from "Low Risk" to "Very Low Risk" by their Government's rating soon so I can take a holiday there without two weeks quarantine.
The main actually ridiculous restriction is the Federal Government's ban on travel out of the country. That is wrong, and probably unconstitutional. Travel out should absolutely be allowed, just with the proviso that there may not be quarantine capacity for months to return (perhaps you should need to have to book in advance and pay a deposit if you intend to return in the next year). Although apparently it is actually ridiculously easy to get an exception to leave, I have a few friends that have taken jobs overseas and their applications were approved in hours with no questions (not even asked for any evidence they actually had a job offer).