Many carnatic venues ( especially the streaming ones - Arkay, Raga Sudha) - I am not sure if they have played with position of monitor speakers. For photogenic ( or videogenic) reasons, or manage the optics as they say nowadays

, they all have hidden them on the side of the stage or prebuilt them into the hall structure (Arkay?)?
The monitor speaker for either the traditional or the liberated

configuration of artistes , is smack in front of the artistes where adequate feedback can be ensured for lower levels of setting - may be down the stage atop a chair or bench.
They all need to try it. This will reduce feedback issues. The most from violin Mike which is bass enhanced.
I had an email exchange with Sri Bhaskar of Mudra. He said his is a studio and he is aware of the blare of percussion, being one himself, he has limitations.