That is not correct. Using it inverted was not a design consideration, and in fact, VXL advises additional care when used that way, i.e., if left inverted for an inordinate amount of time there can be heat build-up in the electronics section (in the bottom behind the switch) which could be damaging. Additionally, a more watchful eye on the joint is required when inserting/removing the EVO in an inverted position.
The light weight is all about heat dissipation. To create the rapid convection in the bamboo chamber up through the ELB requires a very high-intensity heater wrapping the bamboo (with a protective material between). That heat must be thrown off the unit to protect the all glass air path, which was/is considered a primary design objective for purity. The original Cloud used an aluminum housing that acted as a heat sink, absorbing and holding and slowing dissipating the heat. That worked, but it made the housing exceptionally hot. Many if not most of us wrapped wrist bands around the housing to be able to handle it, and even then, it was still pretty damn hot. VXL tested various plastics with thermal properties for the EVO, and the material chosen was considered a balanced trade-off between form, function, cost, and use.
Every person I know that has used the EVO has been surprised at first by its lighter weight. Aside from the cord potentially being a nuisance to balance (which can be rectified by a better cord), it is stable. Most users become accustomed to the weight quickly and adjust accordingly. The EVO owners I know don't give it a second thought. That said, it's not a box vape nor does it have a wide platform base like the Q; consequently no question that it requires more user attention. If ruggedness is a prime consideration for a user, then conceivably another vape would be a better choice. Bottom line, it's a question of trade-offs. As eloquently stated in a post above, "my Father has many mansions;" each user gets to decide if the EVO mansion is where he wants to go vs one of the many others.
my Evo too