A simple summary, that’s the novelty.
The patch exists so the XA2 users should be happy.
This part is not clear for me
I can understand that they wish to use ‘device only’ mode because privacy concerns but I did not get that the GPS was previously working indoor without A-GPS. Is it a specific problem of XA2 or a general problem? Considering that I have a X10II, it might be a general problem.
Without changes was working well with a WiFi connection over fiber probably because such a connection was able to sync the system clock precisely enough and obviously this require the autoupdate of time/date set.
With these changes is working with a mobile 4G connection + UDP VPN, also. So, from my PoV is a great advantage because now I can have indoor GPS quickly working with my mobile connection. Which was my goal.