I don’t think is accurate at all. For anyone who has been watching this year, Finucane has shown her dominance in the sprint to prove she is clearly the fastest sprinter going into Paris.
What was lacking in the past was her race craft in the Keirin. She seems to have improved this throughout the season, and benefited from the confidence of knowing she is the quickest rider and was utterly dominant in winning the Keirin in Hong Kong when she last competed internationally.
I wouldn’t have any rider has a dominant fav in this due to the variability in the event itself, anything can and often does happen, however Finucane should rightly start as the favourite in the Keirin.
A small note on Ellesse; she has had to come back from a really nasty crash for this Olympics, and the missed training is certainly a big hurdle to overcome. She has better medal chances in the Keirin than the individual sprint I believe.