That was Christ healing those brought to him in order to fulfill prophecy. It says nothing about being healed of illnesses or diseases because of blabbing it and grabbing it.
Exegesis. Try it; you'll like it.
Hoss
Blabbing it and grabbing it is all over the Bible.
And, behold, a woman, which was diseased with an issue of blood twelve years, came behind him, and touched the hem of his garment: For she said within herself, If I may but touch his garment, I shall be whole. But Jesus turned him about, and when he saw her, he said, Daughter, be of good comfort; your faith has made thee whole. And the woman was made whole from that hour. (Matt 9:20-22).
Many thronged him but only one said, if I can only touch him I will be whole, and Jesus said Your faith has made you whole.
The Bible. Try it; you’ll like it.