Why do people complain about Ekko's AP ratios when Tankko is the reason they're complaining?

Blah blah 80% AP ratio on passive Trash 10% on first pass on Q Meh 60% on return 2.2% per 100 AP on missing health 150% AP on shield Trash 20% on dash 130% AP damage on ult 6.6% of damage taken in last 4s healed per 100 AP

But. People are complaining about Tank Ekko. Regular Ekko (AP) has a ton of utility and potential damage, sure. But he's not going to live very long unless he plays very smart, because he won't have any safe way to drag them down and just beat them to death. (Typical Iceborn slow which lets him actually get close enough for dash/point blank Q/passive procs/etc). Without IBG. the Q is easy to dodge outside of point blank, it's easy to stay out of Ekko's E blink range if you know what it is, and he'll almost never land the stun on someone unless it's in the middle of a teamfight.

Tank Ekko doesn't even have AP until his 5th item (Scepter) which is a measly 70 AP - pretty much worthless - going off champion.GG (since people love to cite that). His own base AP (Does he even have that? I forget) is practically insignificant even if it exists.

So why do people complain about AP ratios when they're complaining about Tank Ekko? I just don't get it.