After seeing the pics, this was an extremely close call. I'm afraid that a very bad result would occur if this gets repeated at V1+ You are correct in that the engines and aircraft are not designed to accomodate running into a flock of geese at V1+ whether twins or quads so a large ounce of prevention, avoidance etc. must be regulated.
From reading the Dutch print media, this incident is being viewed as a very serious one which could have ended badly. Who knows how close the 2cnd engine was to being struck.
I'm not sure why this event happened or where the loophole is.
Did any crew actually see a flock of geese on the ground near this runway that day and did they report the same? I hestitate to get into the subjectivity of transient bird flocks on the move, but this flock appears to have been on the ground and on a runway.
The airport management already raised the alarm about the issue of birds nearly 2 years ago. According to statements made by Schiphol there are no resident birds on the airport grounds itself - the airport has measures in place to ensure this.
The problem is that the airport is located in a prime area for large birds such as geese where they can feed & rest. Thus, the issue is of birds & flocks originating from outside the Schiphol grounds, which overfly the airport as they move from one location to another.
I think its reasonable to assume this Air Maroc incident will have set off some major alarm bells at Schiphol, which will now be focusing even more energies & expertise into managing the problem than was previously the case (it was already high on their priority list apparently).
As it is, a version of the bird-detecting radar system developed for the Dutch air force 'ROBIN' is apparently set for introduction this year for experimental trials.