Was Ata’ ibn Abi Rabah interpreting the Quran, even though he was not proficient in the Arabic language, given that it was reported he said: "I wish I were proficient in Arabic"?

Al-Dhahabi did not comment on 'Ata's statement, "I wish I were more proficient in Arabic." If it is authentic that he said it, he might have meant excelling in its sciences. 'Ata was Arabic in tongue and upbringing, and he was among the most knowledgeable people of his time. Al-Dhahabi said of him: "'Ata bin Abi Rabah, the Imam, Shaykh al-Islam, the Mufti of the Haram." Ibn 'Abbas and Abu Ja'far al-Baqir praised him, and he was compared to Al-Hasan al-Basri, Sa'id bin al-Musayyib, and Ibrahim al-Nakha'i, which makes the possibility of him being excluded for not being proficient in Arabic unlikely, especially since he was a reference in Tafsir and other sciences.