Both Jan-Tore and Esa (plus some experienced Swedish guy who was at the rescue of MS Jan Heweliusz) said they expected to come across Estonia floating upside down, or only semi-submerged, and were shocked to see nothing but bits of debris.
I have no idea if the explosives were those left behind by the navy guys who were there earlier but there is a petal shaped hole in the bulkhead bow, unmentioned by JAIC. Prof Ida Westermann found telling deformations in the metal of the bow visor. No mention by JAIC.
As Carl Bildt was in a hurry with his early conclusion, one has to suspect a guilty conscience. Like denying a fart in a lift. He who denied it, supplied it.
If it was a criminal gang, don't you think they would be going after them and not anxiously stating 'We do not wish to blame anybody'?