The complaints are disproportionate.

There's no reason to complain about the security situation at Kabul.
Kunduz otherwise is not a decisive and therefore quite irrelevant region. The troubles are all about a few pockets of Pashtuns - the vast majority of the population is not Pashtun and there's no doubt that a halfway effective Afghan government could eventually take over full control up there.
That's what ISAF is all about, after all.*

The level of violence is irritating and rising, but very low in comparison to Helmand. There may be a relatively low effectiveness of the German garrisons, but the outcome -heavily influenced by the demographic situation- is nevertheless quite acceptable in light of the mission.

Germany is not on a crusade, and the Northern theater is just an unimportant periphery. There's no way how the cautious approach up there could risk the whole ISAF/OEF-A effort.

I find this lack of focus and lack of understanding of priorities quite disconcerting. Did the (imo nonsensical) 'people as CoG' talk obliterate the understanding of real priorities?

Besides; according to reports** the non-Pashtuns (including the government troops) up north celebrate the air strike (and the foreign troops for doing it) while the Pashtuns stfu because the killed ones were apparently a mix of murderers, Taliban and petty thiefs.
There's little chance of an accidental guerrilla multiplicator effect this time. There's a difference between bombing a wedding party and a bunch of greedy fuel thiefs.

Last but not least: I'd be happy if we withdrew asap. There's nothing to win in this stupid conflict. It ceased to be an article 5 affair in 2002 when the Taliban had lost power in my opinion.


Disclaimer:
Everything about the recent events is preliminary. There's no certainty yet, and will probably never be.

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*:
NATO’s main role in Afghanistan is to assist the Afghan Government in exercising and extending its authority and influence across the country, paving the way for reconstruction and effective governance. It does this predominately through its UN-mandated International Security Assistance Force.
ISAF is a key component of the international community’s engagement in Afghanistan, assisting the Afghan authorities in providing security and stability and creating the conditions for reconstruction and development.
Security

In accordance with all the relevant Security Council Resolutions, ISAF’s main role is to assist the Afghan government in the establishment of a secure and stable environment. To this end, ISAF forces are conducting security and stability operations throughout the country together with the Afghan National Security Forces and are directly involved in the development of the Afghan National Army through mentoring, training and equipping.
Conducting security and stability operations
ISAF is conducting security and stability operations across Afghanistan, in conjunction with the Afghan National Security Forces (ANSF). A large and increasing proportion of these operations are ANSF-led.
http://www.nato.int/cps/en/natolive/topics_8189.htm

Many Americans misunderstand foreign ISAF forces as an auxiliary troops pool for their war, but their mission is defined and looks differently.
ISAF is not tasked with conducting a counter-insurgency. It's just a stop-gap force till the Afghan government forces do their job.

**: Better than WaPo quality.