@tito-satya - I do not think your logic of "clashes of intentions" matters here. As pointed by 'tesko_baje', this should be similar case with people filing GC while in OPT.
Intentions change over time and the burden to prove falls to USCIS. This is a common practice where parents of US citizens come here in US under B1/B2, and once they are here they file for GC. Their intention when they enter US was to stay for 6 months under B1/B2 and return back to their home country. However, once they were here, their intention changed and circumstances changed and hence filed GC. USCIS cannot prove their intentions unless there were past effort made to obtain GC.

With all said, I am not an expert on this filed either. These are just my observations and things i learned while going through my own process.

I would suggest getting lawyer too and the initial consult will not cost that much.