No, Scott... Unless the specs are posted with the value that those frequencies are down by, there is no valid comparison. The JBL's state clearly that, at 90Hz and 16kHz, the sound is down by only 3db. But that doesn't mean that sounds outside of that range don't exist at all, just that they are attenuated by MORE than 3db...
The Podium's, OTOH don't offer ANY attenuation figures at all, so they COULD be down either more or less. They are just stating the extremes of frequency the speakers will reproduce, but they offer no figures to quantify how much those extremes are rolled off. They certainly aren't flat from 28Hz to 20kHz... even multi thousand dollar monitors aren't that!
It's just one more example of how shady the whole 'specs' thing is. Your best way to protect yourself from hype is to educate yourself on the MEANING of the specs... And then only trust your ears, anyway!
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An arranger is just a tool. What matters is what you build with it..!