A well-functioning Type E is a little harder to raise than a well-functioning steel Workmate. I think there are two reasons. First is that the joints on the Type E are designed and constructed with tighter tolerances, so there's more friction. The all-steel Types have slightly looser joints, so they have a loosey-goosey feel in comparison. Second, is the lighter weight of the Type E. When you start to raise the top of an all-steel one, the weight of the lower frame assembly tends to keep the base on the ground. On the Type E, there's not as much weight there, so the whole bottom just lifts off the ground unless you press it down. This is as designed.
The secret to this is in the owner's manual for the Type E, which you can find on the Documents page on my site. Have you wondered about the little tab of metal, unique to the Type E, attached to the front center of the footrest? That's called the "baseboard boss" and its sole purpose is to help you raise the top. With the front legs still folded under, you actually lift the entire front of the Workmate, with the footrest and folded front legs coming off the ground. Then while holding that up, you put your foot on the boss and push the lower frame down to the ground. The manual has a drawing of how this works.