I think no.... I have also not applied for  KCET .Just neet

After announcement of NEET results, KEA will ask students to submit details of NEET examination (Such as registration number, roll number , name, date of birth).

If you want to attend counselling which is conducted by KEA you need to submit your details. At the time of submission of details you need pay registration fee as you have not applied for CET. After that your name will also appear in the KEA list . If you don't want to get your name in the list , don't submit the details.

All the best .