Just unwrapped my spoon and tried it out.Post-spoon the text in the relay browser frequently has a substitution: "You napp a flyer up on your opponent. It enrages it." is one example and the flyer -vs- ML count is even further off (undercount).
Sure enough, if any word in "You slap a flyer" is transformed into an italicized word, it won't detect the success.
I changed the match to look for either "You slap a flyer" or "It enrages" and haven't been burned yet, although I have no reason to believe the spoon couldn't distort both of those fragments.
There are many many combat messages that we look for and having random words replaced by italicized rhyme-ish words breaks them. This will be a pain to deal with.