From what I know, this church had been rated DOD8 which basically fall in the EF5 range on EU's standard.I'm personally skeptical of the F5 rating for the 1930 Montello tornado. While large stone buildings were severely damaged, the vegetation damage right next to the buildings is not really what you would expect for an F5. Some of the trees aren't even defoliated. Also, I'm not sure if the structural damage is bad enough as usually F5 damage for these types of structures would it being completely leveled. While I do think this tornado deserves an F4 rating I don't think it was an F5.
The level of the damage to this church was similar to Harrisburg tornado 2012 which only been given 170mph low end EF4 rating.