It´s an article for simple users, who don´t write any scripts, but expect IPv6 to work out of box.
In Germany (which is also true for Austrisa and most of Hungary) the major providers will reassign you a new IPv6 prefix at least every night. Don´t know the exact reason why they are doing this, but probably to “encourage” businesses not to use cheap subscriptions.
If you get a new IPv6 prefix, your IPv6 connection just breaks from the users perspective every night. So CT which is technical magazine with strong orientation towards hobbyists, did not include MT in his tests, explicitly mentioning, that this issue was not adressed since many years by MT.
It´s not so great publicity for M. But the only bad news is: if there are no news at all…
The exact nature of this issue was discussed here already:
http://forum.mikrotik.com/t/changing-ipv6-prefix/155531/68