VXX Diagonal Calendar Put

Even though I have a boatload of long (Fully paid for) Puts for 2021 and 2022 I’m adding a new long with this spread
Bought to open VXX 01/15/2021 17.0 Puts / Sold VXX 09/11/2020 27.50 Puts @ 0.03 Credit.

This puts my VXX Short Strangle positions more in balance for the coming week