Are people too critical of other preachers and pastors? Probably sometimes that is true. But sometimes it is deserved. Preachers have a unique job description: To preach Christ and him crucified.
Issues, etc., a Lutheran radio program, has a segment called "Sermon review" where they mean to help people know if they are sitting under Biblical preaching or not. Often the reviews are positive examples, but they decided to do one of the sermons of Joel Osteen. A Lutheran pastor here reviews a Joel Osteen sermon with a few diagnostic questions: Is Christ mentioned? What is Christ doing in the sermon? Is Christ the subject of the verbs? (Is Christ doing something for his Church, or is it about doing something for Christ?) If you've never heard an Osteen sermon before, this is a good introduction. If you have heard and liked Osteen, this is a good warning against what may tickle your ears, but does not feed one's soul
For the time is coming when people will not endure sound teaching, but having itching ears they will accumulate for themselves teachers to suit their own passions, (2 Tim 4:3)