Finally got around to finishing this, and I have to say minus the mental ret-conning needed for placing a mid-40s RDA MacGyver in modern times, this was a very easy and enjoyable read.
Regarding the bolded, I think they managed to mostly nail that aspect of things. Making the connection in my mind from what I was reading to this being just another adventure for RDA's MacGyver was not hard. Tonally they did a very good job, and at no point did I really feel like this was something from out of the MacGyver realm.
I would definitely read another installment.