this game was done in like 3 days, thats mainly because it got cracked on monday and i work full time...
heres where you are wrong:
the difficulty does go up, but it is not as extreme as you say.
the final bowser fight was INSANELY easy. i got hit 1 time, 1st time through. kamek was tougher
it probably will be a classic, but after like another week of fiddling around, ill be done and i won't go back, unless i ever get more wii remotes and people want to play.
the star coins are really hard to find without using a guide, that makes the game difficult to complete. but beating the game is actually rather easy, including star coins 7.5/10, without star coins 5/10
i don't know, maybe i am just that good at mario games