I think it's kind of the opposite, Poki. In many ways my Fi values are the harsh taskmasters. They set a standard and the primary way to manifest them is with a function in the inferior position. Te knows that just thinking about a thing isn't enough. Ne is a wonderful problem-solver and idea-generator, but it gets me stuck with too many options to consider. It's not getting stuff done, it's loading me up with more and more "great ideas" of what I could do.
I'll give you an example of how I think. Today my son is on the third day of moving out, and in an hour or so, will need to return the moving van he rented yesterday. I have been out this morning taking the dog to the vet, taking her for a visit with her former masters (they live in a senior's home and we adopted the dog 1.5 years ago) and getting my husband a birthday present for his upcoming celebration. Now, I want to get to work. I'm self-employed and if my butt isn't in the chair working on websites I'm not generating revenue. But my Fi values say, "People Over Things." My son is more important than websites. And it's true, right? I mean, it's a no-brainer. But I'm getting tired from being busy helping people quite a bit the last while and frustrated to not get work done. But Fi values will not be compromised. If I can help, I will, and put my personal needs behind my business needs behind other people's needs behind my family's needs. Crazily, I feel incompetent if I can't do all this and stay reasonably energized and sane. Ne says, you can do ALL THE THINGS! So, Te steps in to refocus on efficiency, refocus on priorities, trying to get something done, more than just what goes on inside my head. It tells Ne to shut up once in a while, which is a good thing.
See, I'm here typing this out to reply and I'm simultaneously berating myself that I'm wasting time, not being productive, not helping anything, not focussing on what's important. Even on the things that I am most Fi passionate about, Te is never just a helper, it's a push, it's a "boots on the ground" - let's get stuff done tool. I don't experience it in a "Hey buddy let me help you!" way. It's like putting on a pair of pants that are too tight and ride up your butt-crack but you have to wear them for some part of your job and you can't wait to drop 'em at the end of the day.
Now, realize too that I put in the answer to "how I perceive my inferior function". That comes out fairly negative sounding. But I recognize deeply that despite my frustrations, I very much need this function to manifest well in the world, and I am hugely appreciative of being able to harness that power, even if a bit unpredictable. I perceive it badly, but that doesn't make it bad.
Like the end of that video, there's no feeling in the world like bringing a whole herd into town and you ain't lost a-one of them.
What enneagram type do you think she is? I ask because I don't see a lot of e9 behaviours described, with little mention of suppression, and the blowing up bits I don't identify with.