Especially true in today's hiring environment. They probably have hundreds of qualified people lined up for that position. One company recently reached out to me asking me to submit a CV, considering me a good fit for their position. In the end, they rejected me, but they mentioned that they got 1400 applications. If you don't have a personal connection to get you in, it's basically a lottery.
Even sometimes if you do have a personal connection. I've had twice now where I've had a warm intro to the hiring manager, jobs where I had done the kind of work before, and the hiring manager didn't even reply to my emails.
Won't lie, both of those hurt, but I also reasoned it that if that's who I would have been working for, I wouldn't have enjoyed the work anyway.