Neither the Manchester or Botha have been rated at all highly, so how can they be overrated?
There is a bit of ambiguity ib the question; just when are we talking about? You rad contemporary comments about these, and many others, before those pesky BFs had their say, and you'd think that the war was already won. After, eh, not so much. Of course, this never has happened here in the good old USA, right? (What? "TFX", you say? Nevermind...."SB2C-1"? just an anomaly <BTW, my choice for the second most over-rated bird of the war>)