Now the Hesston, Kansas tornado I believe deserved an F5 rating the Gossell tornado probably did not. If you never watched the Hesston tornado on YouTube you probably should. It reminds of the Elie, MB on June 22, 2007 but wider when doing F5 damage.Honestly I have a few questions to raise about all of the officially-rated F5 tornadoes in 1990. Hesston was borderline, since most of the houses swept away were not especially well-anchored, with only a couple being very well-built. I agree completely that Goessel was massively overrated.
Plainfield was an interesting case because almost all of the damage to buildings, vehicles, other structures, etc. was intense, but not exceptional...while at the same time, the crop scouring in the cornfields near the start of the path was extremely impressive, with apparently only roots left behind. It's another one of those cases where the rating really depends on whether you include vegetation damage as a DI. I haven't seen any photos of structural damage worse than low-end F4, but crop scouring that intense absolutely justifies an F5 rating imho.
I still am totally convinced that the strongest tornado of the year was the Pecos County tornado on 6/1, with the Trenton/Culbertson, NE tornado (6/15) being a close runner-up.