Situation
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I have [Yarok, the Desecrated](http://gatherer.wizards.com/Pages/Search/Default.aspx?name=%2b%5bYarok%2c%20the%20Desecrated%5d) on the battlefield:

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> If a permanent entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
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I play [Thought Sponge](http://gatherer.wizards.com/Pages/Search/Default.aspx?name=%2b%5bThought%20Sponge%5d), after my opponent drew three cards this turn:

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> Thought Sponge enters the battlefield with a number of +1/+1 counters on it equal to the greatest number of cards an opponent has drawn this turn.
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Does this creature's triggered ability trigger an additional time? Is it entering as a 4/4, or as a 7/7?

Confusion
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I'm not sure whether this effect counts as replacement effect, as mentioned in the rulings of Yarok:

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> *7/12/2019.* Replacement effects are unaffected by Yarok’s ability. For example, a creature that enters the battlefield with one +1/+1 counter on it won’t receive an additional +1/+1 counter.
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