all this weight in the red circles and perhaps added snow is pulling those pillars and there is nothing stopping the pillars from going wide or deforming/cracking.  you can always make a simulation and "squeeze" it out with numbers to work out, but its not how roof makers here do it. it can maybe be fine, but it can maybe last only 10 years, or until someone walks on the roof to install some cable connector or replace the roofing or something.  the box methods has redundancy when a beam or pillar gets rotten or entirely eaten by woodworms or something bad happens.
Serbia