Since an official statement here for everyone concerning this topic is long overdue:
The introduction of an atk-speed cap basicly was not part of the previously announced class balancing, but is based upon this bug report.
All we could know is that this bug will be fixed and roughly when, but not exactly in which way and with what consequences.
To quote grox from that thread (which imo includes certain weapon types not becoming nerfed):
The only solution is putting cap for attack speed, which means no any form of nerf, but possibility to offhand being used properly, so in fact you can get even better on it, if your offhand weapon is good. However we are still discussing that change, as it needs a lot of tests and researches to make sure it is changed properly, without creating any other issues.
Strictly speaking the opposite of what grox stated there has happened now.
However this change was made simultaniously and has a big impact on class balancing, different from the balancing a bugfix having these consequences was not announced beforehand, so noone could anticipate this.
Classes like the r/m may somehow benefit from this fix, other classes like the scout for example suffered big time because of it.
Btw, another approach to this issue might be to re-reconsider this atk-speed fix to only affect the whitehits done and not having impact on dps-calculation, which int sadly already denied once here.
Cheers!