They never changed an item statistics on live simply because it would case alot of complains, and it would be not fair
Wrong, they did change pretty much whole BM gear. It did cause lot of complaining, but not from people that got their gear changed.
To summarize: telling people that there is a bug in PTS and go live with the bug still there is simply self-damaging behavior. Do not talk about it or correct it in any way.
Same as telling people that patch will be relesed in september, then delaying it. This week we got nothing about weekly maintenance until they decided to drop patch few hours later, because it was hard choice between delayed patch or bugged patch. Either way QQ incoming, but at least most bugs are not so bad.