...it is **literally **a horrible idea though
The whole point behind storm razor was to eliminate rng dice rolling on crits.
In the old system, you would buy an IE first item, giving you a big chunk of AD and 20% crit chance. You walk back into lane with that purchase, and the 3 autos you land on the enemy champions are all crits, which is complete bullshit. Since it's a rare chance to happen, it means that a terrible unskilled player could destroy a good skilled player purely on RNG.
the whole reason why riot has pushed IE out of the picture as a first build item and done what they can to ensure storm razor is the first thing any crit adc builds, is because it eliminates RNG. You still have critical attacks, but there's a control factor in the form of the timer delay.
if you put back crit chance into the first build item, there's a chance your support blitzcrank lands a hook on the enemy trist, and then the trist just autos you 6 times in a row, all of them critting, with just 20% crit chance from that one item and then you lose lane. even if you were doing well and were even on kills/farm. and that's just stupid if that is a possible outcome.