I wasn't comparing anything. Though it doesn't matter since the "remastered" series got better ratings than the new one.
Time Bokan, Space Brothers, and Ace Attorney did not average 6, infact they barely scrapped by 3-4%
Ultimate Otaku averaged 2-3% and only a few episodes got a 3% tally despite its 6.7% start (which was because of Magic Kaito). So Case Files S1 and Magic Kaito were the only shows that got a 6% in ratings while everything else was between a 3-4%. Funny thing about Space Brothers is that it had lower premiere ratings than MHA yet here you are saying it did very good. Make up your mind.
People who post weekly rating updates and know more about that shit than me or you. Kai not doing well isn't really something people can deny at this point. It got canned despite having an average rating of 9.4%, Toriko got canned despite having an average rating of 6.2% nowadays shows outside of Sazae-san and Shin-chan dream of getting those ratings and even they have fallen off themselves.