Yes, time to adjust and familiarize oneself with a new product is often too short. Let alone adopting new sensors into a smart home ecosystem and fully setting everything up the way you want, rather than just the default settings, etc.
I get a new laptop and phone and generally dislike it, because it's not what I am familiar with and it's not yet setup just the way I like it.
And then there is the fact, that the reviewers favoured product has a logo on the product page for the reviewers publication.
There is certainly potential for financial interests to impact reviews.
