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IWR1443: allowable thickness of the PCB layer

Part Number: IWR1443

We are trying to develop own PCB board for our IWR1443 application.

We have a document IWR1443-EVM-Stackup.pdf which describes the structure of IWR1443 PCB design.
Local PCB manufacturer asks us about possibility of this change (see attached picture) : change thickness from 4.0 mil (0.1mm) to 0.2 mm.

is it possible? 

How this change will affect IWR1443 work?