Not really, walaashay. I've been in this game for over a decade now and you don't usually see Yemenis with any Desi. Especially not in the amounts you'd need to make sense of Cadcads' Desi ancestry. They mostly just show madow ancestry and the rest looks almost identical to the usual Bedouin samples out there. Very different from what Cadcads show.
We also have censes for magaalo like Xamar and Marko from the 19th century that show there were about as many minority Indians as there were Arabs. Groups like
Banyans were pretty dominant across the Indian Ocean trade and were found everywhere along the Somali and Arabian coasts, often edging out both Somalis and Arabs as sailors and traders. This is probably legit
Hindi ancestry.