I totally agree with you.With BIC blades, the first shave will probably be OK. You need to watch out for the second shave. As the coating wears off they become every bit as sharp as a Feather blade out of the package. Thus, I avoid them in aggressive razors, but they are one of my favorite blades in mild-moderate razors. If your technique is good (nice lather, proper shave angle, minimal pressure), BIC blades can be wonderful, especially for those with tough beards.
These blades are definitely sharp.