Writers and editors have their favorites and do things to make their favorites shine. Some do petty things. Hell, Marvel cancelled FF for a LONG time just because. SURE it had nothing to do with Fox...Anyway, I am not a fan of redundant characters like Flash, GL, Spider-Man, Superman etc. WAY too many Speedsters, Earth GL's, Mutants, and clones...Clones for nefarious means, yeah ok, but have them turn to goop at the end of the storyline.
Barry vs Wally? It will never end but the both can coexist, but can they coexist with the other 245 Speedsters?