Honestly, if I was invited to a "meet the baby" party, I would think I would need to take a gift as well. I wouldn't consider it a gift grab, more like a shower.
I would think I needed to bring a gift. It's a party with a guest of honor--most people think of those as something you should give a gift for.
And if *I* had a "meet the baby" party, it would probably be viewed as a bit of an attention-grab and maybe even a gift-grab, because people in my circles are not expecting such a party.
One of the cousins had the first-ever engagement party, and it was regarded as a gift grab; people had some slightly snarky things to say about it. Regardless of the fact that all the etiquette books say it's not a gift-giving occasion (but they also say the engagement is to be *announced* at the party, and that's not how it was done).
Ditto the first-ever "sweet 16" party. It was regarded as a gift-generator by the people who gave the gifts.
The danger is there.
Oddly enough, inviting people for a baptism is NOT seen as a gift grab, I think because baptisms are their own events, and the party is the afterthought. Ditto graduations, weddings, first communions, confirmations, bar/bat mitzvahs, etc. There's a ritual event that is the focus; the reception is simply the gathering that follows.
Showers and birthday parties have no other sort of ritual involved; and so they can be suspect, esp. if you're throwing your own. Ditto housewarmings--they're risky if they're handled wrong.
That's why Mom21Son and I have both suggested simply having a party of some sort (open house?) at the baby's home.
Perhaps if it's billed as an open house, and the idea that the baby will be around
("come to our open house! join us for snacks and meet the baby"), it might not run that same risk.