Yo.
sorry to say, but in comics it doesnt really matter too much when U get past a certain STR-lvl in regards to who can affect whom, especially when U have things like watching Cap America punch out cl20 class guys when his blows shouldnt be doing anything close to it.......and it just reminds me that STR-lvls only come into play in relation to who's writing the story & which makes for the more exciting picture. if Colossus or Thing punched Hulk, he *would* send him flying, and the same goes for yur DT/MM scenario as well.
as for the "refution scenario" U depicted above, all I can say is that Kory in general has (for the most part to me anyways) *always come off* as being stronger than Donna, so to see that happen doesnt/didnt say much.
so again, its just opinion that shes that strong, not something supported by hard fact or stated on-panel. which is fine, as long as its stated as such............
Tazer