*glances at signature and join date*
Hmm...not much experience behind such statements.
Ok, just from the IEMs I've heard, I'll present you with a list of single and dual BAs that have more slam and weight than a lot of well-regarded dynamics.. You can go look at my profile to see a full list.
1. Final Audio Design FI-BA-SS. A single balanced armature that has far more body and slam than the likes of the GR07. I did a write-up here:
http://www.head-fi.org/t/624560/mini-shootout-vsonic-gr07-mkii-vs-final-audio-design-fi-ba-ss
2. Final Audio Design Heaven V: Another single balanced armature that I'd classify as quite warm and bassy, with enough slam (when needed) to rival my ASG-2.
3. Etymotic HF5. With a solid seal, the slam and body on these things is incredible. I regret selling mine almost every day.
4. A few others I've heard that I didn't bother to write down notes about.
The IEMs you listed in that post were pretty much all tuned to have bright signatures, and your statement shows a general lack of knowledge about how BA technology works. I'll leave a picture below showing the different possible sizes for BA drivers, and leave it to you to decide for yourself whether or not you think design choices can play a part in how the end product sounds.