It's a big deal to you because it was promoted as some sort of big finding relating to evolution by the subculture of religious evolutionites.
If I wanted to deny their implications, I'd say that. That is, if I weren't a scientist.
Especially for an unnecessary enzyme.
OF course not. If you accept evolution and common descent it is an utterly predicatable, mundane detail. A side effect of molecular evolution.
If you believe in ID however, it becomes a major problem.