Certainly, but that's a different situation than what was implied in the previous comment. Discounting their reviews entirely (like some people in this thread do), just because they are a select group of early reviewers is probably being overly critical. They at least have experience reviewing, unlike many people here on MacRumors or Reddit. They also usually receive some direct answers from Apple when they have questions. This helps them not jump to conclusions about something. There is generally bias but they are independent from Apple. If the reviewers consistently were negative about Apple devices, they'd stop getting access to the products early, but Apple doesn't regularly release products that are objectively "bad".Of course they don’t get paid by Apple.
But they “get paid”
They’re scared of Apple not liking their videos and risking their relationship with Apple so maybe on the next launch Apple won’t send them the product earlier and they will lose views/money
Plus other guidelines they might have to follow
For the record, I rarely watch video reviews of any Apple products. If I pay attention to a review, it's a highly technical one from a source like Anandtech.