True damage/%Health damage - then and now

In Season 5 there were 15 Champions with true damage in their kits (for combat):

Since Season 5 there have been 15 champions released: [SYLAS]

Of the new champions only 2 have built in true damage:

However, 6 have built in % health damage:

But there were already many champions who had % health damage in their kits (over 20 in Season 5)

I was bored and looked into this, I figured I'd share. I think true damage and % health damage is fine, it's just too strong. Deleting tanks and squishies alike, allowing some champions to build full tank while hitting like a truck, and not having much counterplay when combined with some item passives/actives and runes such as conqueror.

I looked into this because a lot of people have been complaining that every champion being released now has true damage or % health damage in their kit, which isn't true. Hopefully I am not too far from accurate in this post.