Some type of exercises can be a big turn off especially to beginners. It's better to choose simple exercises and then move on to harder ones later.
This is a somewhat random and extremely general statement.
When you say exercises, I think of drills or pieces designed to improve/build technique.
Usually these exercises, like Hanon for example, may have a specific methodology. Sometimes, there may just be notes with no methodology (which leaves the exact mechanics of playing up to the instructor).
I guess I was unclear before; so I'll rephrase. What do you think of this METHODOLOGY of lifting the fingers as detailed in the original post?
Scales and arpeggios are great exercises and are used mostly by great piano players. Both exercises can help with finger strength and fluency.
Again, an extremely general statement! I agree that scales and arpeggios are great exercises; however the statement that scales and arpeggios are used mostly by great piano players is completely incorrect.
The world is full or more terrible pianists than great ones. I'd bet a lot of money that a far greater number of terrible pianists practice scales and arpeggios than the number of great piano players.
On another note, scales and arpeggios definitely CAN (in other words have the potential to) improve finger strength and fluency. From a personal experience, however, there needs to be practice with intent and focus. Note that intent is meant in the sense that the practice has a clear objective i.e. improving finger release from keys, relaxation, play pp, stacatto, legato, etc.
My question for you: Do you think the method of practice outlined in the first post is beneficial? Why or why not?