What if someone like Piper, Horton, Keller, anyone like that was preaching at Joel Osteen's church? Would you have a problem with that?
It'd be one of the greatest opportunities to teach the Gospel clearly and plainly from a single pulpit in one sitting in history. Last I heard something like 7 million people listen to or watch Osteen preach each Sunday. If even half that number tuned into the guest, that's a lot of seed-sowing.
Caveat, as long as the pastor was given the freedom to preach and did not have to compromise his message for the forum or embrace one like Osteen as his brother in Christ. Horton's very irenic and passionate about the Gospel in a way that may open a lot of eyes. We should pray that this happen.