Sadly, it is a part of WTC programme and points count for WTC finals- this was already scheduled long back -but your point is valid when one sees the bigger pic.
unnesssary was also BD and SAF T20 series which serve no purpose but money spinners (some might say that is the purpose

)
So realistically from now till About jan 10th we are playing 8 tests which roughly equates to a test per week...firstly in our second summer october conditions and then we will land in Aus, have no time and straight to Optus stadium, Perth-1st test.
The only FC game is aginst PMXI
AFTER the Perth Test after which we have the pink ball adelaide and onto the Gabba for the 3rd test.
Gee whiz - could'nt the BCCI schedule this better to have a couple of FC games BEFORE the 1st test?
I might be pessimistic but i see a lot of injury potential in the hot weather NZ tests even though Poona and Banglore are still pleasant weather, but hope we come out this with our squad intact and not succumb to Weariness by the time boxing day and MCG come around.
It will be a supreme test of all our faculties- mental, physical, technical, workload management etc and has the potential to define us or it might be one hot long summer.