User blog comment:RA2/Robot Wars Rankdown: Series 4/@comment-9751413-20180520060708/@comment-9751413-20180520203412

Mousetrap's easily, Wheely Big Cheese's was a possibility, as was Splinter's. It was a deserving Heat Finalist that just faced a better robot than it.

TBH, it's a pretty vague comment about "could have won a different heat", as there are a lot of robots that could have come out of Mousetrap's heat as winner.