The only questionable moves I see in the above deck profile is the lone Transmodify and possibly the lack of spells in the main. With 1 Transmodify, you aren't going to draw it at the right times. It can make a solid field out of nowhere though, but with 1 copy, I don't see this happening a lot to make it worthwhile.
I wonder if he had any issues with not having enough spells for Summoner Monk. I've always gone with 14-15 as my standard, and sometimes I don't even open a spell with Summoner Monk lol.
EDIT: Regarding the side though... I feel all his choices are justifiable but I don't think they were the best choices he could have made. I see a lack of Dimensional Prison which is arguably a good card for Fire Fist in a sense they do run a low monster count. Regarding Fire Fist - he doesn't even run Overworked. Overworked is one of the best side deck cards for that deck right now... He should of had least sided 2 copies.