Crummy backed Eden Park as a cricket venue, after veteran Australian commentator Jim Maxwell led criticism of the ground because of its short boundaries.
"Eden Park absolutely hasn't failed to deliver great contest after great contest," Crummy said.
"Fans have a great time when we're there. The atmosphere on Friday was electric.
Read more: 'Ridiculous' Eden Park slammed as T20 venue
"It always comes in for some discussion. (Eden Park) is quite unique, no doubt about it, but a lot of grounds are unique. It adds to the colour, players have to adapt. You can't get caught up in the comments of a few people..."
Crummy said TV viewing figures for T20 were influenced by factors such as New Zealand's opposition, and the time of day. But the numbers sometimes doubled those for test cricket, and could exceed those for ODIs at times.