Extended top hats don't affect ride height. Get under there with a jack and take a look at how things work.
Extended top hats allow the strut piston to be in about the same position as if your car wasn't lowered. This is great for struts that were designed for stock ride height, and not very useful for struts that were designed for lowered cars (shorter pistons or a different design). In some cases, the top hats are open enough to allow the strut body to fit inside them, and with shorter bump stops, this will give you more travel before you bottom out.
The shorter forks will lower your car and give you more travel, the same effect as shortening the strut bodies and moving the spring mounts closer together.
That design and material is plenty strong for that part.
I wish mpc had a solution for the rear. On my EG I have Type R springs and struts. Handles amazing but the ride height is about stock or maybe a quarter inch lower. I've thought about getting some Koni yellows for the inch drop, but it would be a shame with these Type R struts being in such great condition.