Nope, there’s nothing wrong with the test. It wasn’t designed to test if it was “strong AI”

That was EXACTLY what it was designed for, the argument being that if it is indistinguishably from a human, it has human like intelligence. Human like intelligence includes consciousness, and consciousness means strong AI.

Computers are "thinking" routinely. Chess programs that have existed since the 80's are already proof of that.

The most well known philosophical challenge to the Turing test is probably the Chinese room, which is an obviously flawed thought experiment, because it introduces human intelligence to the system in an attempt to disprove that human intelligence is present.

There’s plenty of humans that would struggle with counting the number of “r” in Strawberry

I wrote a normal human", not people with way below average intelligence.
Notice I wrote count which means they can be presented with the correct spelling if needed.
Spelling it wrong would be a very human thing to do.