What I've bolded is something way more associated with EJs than with Si/Te imo. SLIs enjoy practicality and a generally low-frills lifestyle, but they can and are lazy as a fat cat on a sunny day. They seem to enjoy getting into their own space and just nesting there with whatever occupies their heads.
EJs on the other hand need to be doing something. They need to get other people doing something. When things aren't running at the pace they want, they find other things to fill that time. Even when they're apparently relaxing, they need to be doing things. For instance, my EIE friend thinks she relaxes with me, but that means cooking, cleaning and checking emails while talking to me, lol. It can be the middle of the day and rather than sit on the couch and relax with me and chat, she'll bake a cake for no reason.
This. I find IP temperament even harder to believe than Te ego, in VFD's case.