Hiroshi - you've just pulled a switcharoo and taken a debate about puzzle difficulty and switched that out into an attack on game difficulty overall.
There is a huge difference between saying, 'I want this game to be harder than the current crop of Tell tale games" and "I want this game to be as hard as possible".
As Lambonius pointed out, TT's latest games have been ridiculously easy. there is a huge difference between moon logic and having to actually think and not just clikc on one of 5 spots on the screen.
The entire point of most of the threads here is that TT has gotten away from adventure games in general and started creating quicktime event movies. The thread over on the walking dead game is showing signs of the same issues that plagued BttF. Many of us have hoped for years for a new official entry in the series, and many of us would rather not have one at all then see a light weight cartoon fantasy slideshow that we just click through.