By adding the option to spawn at Sydney, everyone will then spawn there because it's what people are used to. The options to spawn outside of Sydney were also there in the last iteration, but were rarely used. Ultimately, this is about weighing up the pros/cons not only for established gangs, but also brand new players who may not want to be murdered every time they play 'hop over the safezone line, I dare you'. I have not been on the server in a long time, so really, I dont know how it is now - there are just my points.
As for the updates, the ones which were done (All of version 7.2.X) involved resolving bugs found here: https://strayagaming.com.au/altis-life-bug-tracker/public-reports/
If you look through there, there are a few requiring an update to be implemented. What I would assume here is that there will be a larger update, rather than 100 small ones requiring you to download the file over and over again.
Or, alternatively, SG doesnt care about you and does this all to toy with you for their enjoyment. Who knows