See, it depends on your usecase.
If you travel rarely, and don't have high spends very often (excluding usual stuff like rent), LTF or cashback cards are enough.
In my case, last year though I did not travel international but I took atleast one round flight domestic almost 9 out of 12 months as I was mostly working hybrid. Other than travel, you also get pretty returns (over 10%) on a lot of other things like paying electricity, internet bills when you pay via vouchers bought using cards like EPM and Infinia. Of course that return would only be achieved if you redeem points for the highest value. In my case, I travel a lot (atleast domestic) and that is not going away. Therefore, I consider these points as liquid cash.
Regarding devaluation, given that ICICI has already tightened the screws it will stay for sometime atleast. And when that happens, it will open an opportunity for some other bank or card.