We already have Brook. It would be repetitive to have another dead crewmate.
That's assuming Pedro actually died and is resurrected like Brook instead of being in a vulnerable or near death state which multiple Strawhats have already experienced.
Besides we know Luffy respects Pedro and Pedro rode on the Sunny freely. Sharing some traits with some Strawhats isn't automatic disqualification as long as the character has strong unique physical and character features.
Pedro is unique among Strawhats having spots, a prehensile tail, dynamite, and Electro. Pedro has a eye scar on his left side similar to Luffy, Zoro, and Jinbe. Pedro uses a sword like Zoro and Brook. Gets hot under his fur like Chopper. Smokes like Sanji. Etc...
Don't focus too much on using similarities as disqualifiers but rather as potential bonders with the other crew members.
It doesn't sit well with me that there are some Minks we did not see their Sulong forms (Pedro, Pekoms, Bepo, Faust). It seems like a waste especially Bepo being in Wano or Faust not being in Wano. Oda disservicing Pedro, the reason Luffy and half of the crew had even a chance to escape WCI, by not showing the audience this hyped form would not make sense. And Pekoms is the ONLY Mink we know that has a Devil Fruit power! Pekoms has yet to display his DF power and Sulong together. Oda is planning to bring back the Minks which I believe is in the Vegapunk arc.
So Pedro should be on the list.