Again, if you are evenly matched then why does picking the matchup matter?
‘We did it this way in the past’ is not actually an argument against doing something different in the future.
So even if it matched you against a perfectly even skilled opponent, you haven’t earned the win because one or both of you searched for the matchup specifically?
You’ve made objections but not explained your reasoning beyond ‘it’s different’ or ‘its complicated’ or <insert misc insult / unrelated balance complaint>.