I don't believe for a minute that Wizards was (intentionally) moving away from 'hate towards only one color' either, they were consciously moving away from 'protection from <color>', but that's not the same as eliminating color hate altogether. I mean, we just had the mare cycle printed in M19 this summer (and that green one suuuuuuuucked for limited because it was effectively 'protection from black').
I said they moved away from it up until the ‘hexproof from color’ was printed which was in Dominaria. The Mare cycle you are refering to happened later in M19 and thus proves my point that we are now moving backwards from the trend we were for so long up until the ‘hexproof from color’ creatures.