I have never said otherwise. It is convenient for me to sell those services clearly. However, referral systems exist everywhere. Why is it a big problem for some when the words "referrals" and "commissions" are mentioned.
Go to YouTube and you will see that each great youtuber has offers of various products and services with their reference number or name. This is normal. They are using his influence to do marketing and he of course gets an advantage with that.