Reasons are
1.To avoid bashing from fans.. (yes some bashing r so unbearable and direct like u r not a good human.u will get punished by God soon...urggg some fans 😡 )
2.To test the pulse of fans ...
3.To show ppl that the show taking major turn &keep us hooked
In south we see lot of actors leaving comments like this on their own characterisation. .
I guess Supriya ji as a very kind and soft natured human got offended with fans bashing (trust me some r unbearable ) left a msg .like this indirectly asking not to compare her with Ishwari.
So guys chill.They r professionals .they portray what they r asked genuinely. We fans should support the show in its up &down