Players come and go and the sport/league is bigger than any one player.
Each player has the right to choose their own path and while he played a very good game and was a very good player, it just means that there is an opportunity for someone else to fill those shoes.
As far as Perth are concerned, I think we all saw how vulnerable Perth were/are without Damien Martyn direction traffic. He had a spell on the sidelines last season and if you compared the performance of Perth without him vs with him, there's quite a gap that should be concerning Perth fans if he is to hang up the boots and not feature in NBL 21.
With the NBL, I think NBL21 will be different to NBL20, but as far as it being worse, we don't know yet. There's a saying that of the things you worry about, only 50% actually happen, then
of the stuff that does happen, 40% happens with no or less desirable consequences than people worry about, then 5% happens with the consequences people worry about and 5% is worse. So, we worry 90% over nothing.
The NBL20 season set the benchmark moving forward, strong crowds, exciting games, exciting finish to the minor rounds, games being stopped due to a leaking roof, excitement on and off the court, new team. Funny end to the season. There was a lot to pack in and keep the crowds happy.
NBL21 should start in October, but there are plans if it doesn't and a shorter season in length, but I suspect the same games would occur. I wonder if we would see a lot more double headers to fit them all in. The only real unknown is the spectator aspect which is out of the NBL's control and the government will have a policy in place by then I would expect.
With crowds, I would not be surprised if there are a couple of key changes in government policy. The first is HVAC (air conditioning). There's concerns that any viruses could travel and be spread using air conditioning. There are rules regarding air circulation times so don't be surprised if indoor stadiums might need some UV sterilisation of the air going back into the stadium. Secondly, I think you'll find the hygiene standards of stadiums will increase dramatically with an increased requirement to keep toilets areas clean, food areas clean, etc etc, including lots of hand sanitiser stations. Lots more cleaners etc. Thirdly, don't be surprised if we see thermal cameras on entry points to scan for potential sick people and fo security to subtlely take these people aside. With the Covid19 Ap it will be easier to monitor people as well. So a few things to keep spectators, and more importantly, players safe. The sport needs crowds as empty stadiums are pretty boring...however, all those safety measures will mean that the stadium owners will have to charge more per game night.
I think it'll be just a good as NBL20 and hey, remember we have the Tassie team returning in NBL22, no doubt the double headers will be popular down there.