With the exception of heavy, your claim that a pyro should lose close range is well... completely absurd and wrong in every possible way to be wrong. The pyro is supposed to be the best class at close range which is why the pyro has nothing that's very effective over long range (the flaregun doesn't count because even though it's useful it's not powerful at all), and getting close enough to any enemy with a mid to long range weapon as a primary (essentially EVERY class except pyro) isn't as easy as you'd like to believe. If a pyro is able to get you in his range then you should die, and if you're getting killed by pyros that are charging headfirst into you in plain sight, you're just bad.
