Does dice probabitlity matter as much in my generator series matrix charts?

I wanted to write an a blog post covering probability.

I've seen this topic mentioned in many places in forums, groups, blogs, and chats.

Here is the real probability of the generator chart with the various dice.

And remember, these numbers are out of 100%, so a .69 means 0.69%. The numbers will mostly be between .5% and 2% with a couple of exceptions.

Click charts to enlarge

All four dice are around .5 to 2% chance of rolling.

What does this mean?

It means that because of the large pool of 144 items on the 12 x 12 charts, you will likely have pretty much a .5, 1, 1.5, or 2 out of 100 chance of rolling any of the items in the list.

To look at the  2 dimension 12 x 12 random matrix probability in 3 dimensions it looks like this.

I saw how most of the numbers would be just below 1% chance in all 4 dice roll types.

When I looked at the chart information in two coordinate dimensions and the probability, and saw the percentages drop drastically, then the chance of rolling the variations equalize more and became more acceptable.

The charts that look like this next one are only one dimension and one measure and do not apply to the generator matrix charts. It only applies to a single roll. Because it is one dimension, it would over inflate the significant percentage by nearly 10 times.

I actually considered Fate/Fudge dice as well, but they had to much variation in my opinion.

I hope that these visuals help explain the decision to have 4 types of dice for the same chart.