That is what Dutch PM Rutte says
Yesterday he said it is not required to have investigators on the site.
Rutte is a politician and have nothing to do with a aviation crash investigation or suggest any orientation of such investigation .. so his comment is unimportant
I suppose that the lead of the Dutch investigation team will (they must) comment about the Rutte declaration to rectify this......
This accident is very special (context)
When this is a special case the best is to collect the most of evidences (materials included)
Nice exemple is the TWA 800 ... (was special circumstances)
Less the material .. never they had find the conclusion
MD11 Swiss Air .. same .. the conclusions and finds were based on material analyse ....
Anyways the more they have.. the more the investigators will be happy
The evidences are there .. (not in unknow place under sea) and waiting to be collected ...