Rough English Summary:
There are many good books and publications on the stature and status of Sahaba (RA) but the Fitnah (of insulting the Sahaba (RA)) is coming from Social Media particularly Facebook and YouTube. Sunnah practising Muslims are asking questions about Sayyiduna Muwaiiya (RA) due to being influenced by Social media and nobody has the time to read books these days.
So I request those who have the knowledge and ability to communicate to focus on the Social Media front, I say the ability to communicate because it is necessary for others to understand you properly.
The era of (reading) books and publications is old fashioned now.