Here's another way to think about it. It's amazing to me that people seem to assume that Rubely would have been a better 2020 K-State QB than Howard was. There's almost nothing to base that on.
You are also completely discounting impartial assessments of the two quarterbacks. If all things considered equal the expectation should be that Rubley will be better than Howard, until Rubley or Howard have proven otherwise.
When I made my proclamation in early October that Rubley would never start a game here it was off the assumption that Howard would have outperformed his high school evaluation, that turned out not to be the case, he didn't perform any better than you would expect a low 3 star prospect to perform. Doesn't mean he can't or won't get better, but he didn't outperform his projection. If Rubley performs to his projection, that was made by the same impartial observers that observed Howard, he will be a better quarterback.
It's like saying the incoming freshman chemistry student with a 3.8 high school GPA and a 31 ACT will likely be a better college student than the sophomore who just finished her freshman year with a 3.2 cumulative GPA, who had a 3.4 in high school with a 25 ACT.
There's nothing wrong or flawed with thinking that Rubley will be a better quarterback.