No it's not opinion, referring to football as wendyball is pathetic in the extreme, and has other less savoury connotations as has been pointed out by
@User13710 and
@coffeejo, suggesting that athletes in other sports have less prowess or less athletic ability purely because you don't particularly like the sport they are involved in is also pathetic and utterly twerpish, and if you think that the post I was replying to, the one which you liked, was adding to the "healthy debate" then you're sorely mistaken.