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I wouldn't be so quick to dismiss the apostolic in-your-face method of preaching as "incompatible with our times." It was no less compatible with their times. They were just as unwelcome in pagan temples and Jewish synagogues as we would be in a mosque today. They weren't killed for no reason. They were obnoxious, invasive, and gave no care for political acumen. It was just as ridiculous then as it would be now. Difference is; they didn't care.
In the spirit of honesty, and not of judgment, the apostles would never have set foot into a gathering of any non-believers without making a bigger scene than a vegan in a meat market. Of 72 apostles, 71 were so obnoxious that they were killed, and also resulted in the murder and martyrdom of hundreds of thousands of other believers.
We should at least be realistic in our comparisons. Good or bad decision aside, it is not a change in times that we are dealing with.