In the WC all teams will be playing in pitch-perfect conditions. No point in playing in sub-standard conditions for WCQ. If the USMNT is that much better than Honduras then a game in Miami at 75F even with deep Central American support shouldn't faze them.
If you can't beat these teams, you don't make it to the World Cup. You are supposed to use every advantage you have, whether it is cold, heat, altitude, whatever.
And why would you schedule a world cup qualifier in Miami? That's one idiotic suggestion
Especially after playing in Canada a few days before? Put everyone on a long flight for no reason? Then the Euro based players have a longer flight back to the clubs? 
Pretty sure there will be matches needing cooling breaks in Qatar and there definitely will be in 2026 if they pick Southern US cities that summer and optimize kickoff times for the European audience like they did in 1994.

