The likes of MacArthur, Third Millennium, R. C. Sproul, etc. they have problem in their evangelism because while able to accurately criticize problems in Christianity today, especially in America, they kept asking for money gifts and support in radio, internet, etc.
Even for Timothy/Kathy Keller, the sharper criticisms from them could only appear in writing, not public speaking.
All these are lacking is a true love to preach to strangers.