Sunak has regular meetings with key personnel, including the security agencies, together with a whole team of special advisers. That doesn't mean he doesn't also have personal interests because one's spouse does not count. Sunak sold his Infosys shares to his wife, so now he is free to give Infosys a huge contract, yet remain completely innocent of breaking the ministerial code, which requires declaration of interests and conflicts of interest.
So it is quite possible he or his wife being close acquaintances with Mr. Tata to consciously or unconsciously want to protect the Tata JLR brand. The way around it IMV is to declare the name, model and make of the vehicles that started the Luton fire.