According to the soil report, the statics have been calculated incorrectly

Good day,
maybe you can help me further.
I have calmly read through my geotechnical report and structural analysis of the house.
According to the structural analysis, the house is built on a slab or base plate d=25cm without foundations.
In the geotechnical report or soil survey it clearly states:

"The variant 1 assumes a conventional foundation on a load-bearing base plate combined with frost and also shrinkage-resistant skirts here.

The other variant assumes a foundation on strip foundations with deepening of the external foundations to a level of at least 1.5m below the future ground surface and a recommended step into at least stiff to semi-solid marl.

According to the soil survey, the structural analysis has been calculated incorrectly?
Thank you for the help

You are supposed to construct a 1.5 m deep strip foundation? Otherwise, the structural analysis can only be carried out after knowing the ground conditions. It will result in the first supplementary charge to your house price.

I am also surprised that one has to make 1.5m strip foundations. Almost like a basement...

Train station?
Foundation recommendation says load-bearing floor slab with frost skirt (Variant 1) or strip foundations 1.5m deep (Variant 2).
The decision goes to Variant 1, the load-bearing floor slab.

Where is the problem now?