Modern day alphabet the result of dislexia or bad handwriting?

Im not sure if this is the right forum or not for this but its the closest one i could find. Anyway i was looking at a website that showed the transition of the modern day English alphabet from Phoenician to current. And something caught my eye a few of the letters really haven't changed much they just look like someone dyslexic or someone with bad handwriting mutated it somewhat. Looking at the original letter A it just looks turned sideways, B,C,E,P,got flipped backwards m & n got flipped upside down S got flipped sideways. Those are just a few i noticed, it just looks to me like Dyslexia or bad handwriting gave birth to modern day letters. Anyone else ever notice this?

Heres the site with the evolution of the alphabet i was talking about

www.popamericana.com...!/Alphabet%20Evolution.gif

Its a little more than flipping around letter since the sounds (and thus words) are different.