Trusted to do their job? Personally, I think so, and would go as far as to say the main contenders are not doing anything fishy with your data.
I think the trouble comes in with the fact that they become a high-value target to hackers because of how much information they have on their customers. I'm sure that they take a lot of technical precautions to safeguard user data, but for me personally, the risk is not worth the value proposition.
Yeah, functionally it's the same. However I think it is a big perceptual change to be in line with the FUTO principle of "we want to make good software that is open and accessible, but we would also like you to pay us for it so we can continue this project sustainably." That's a bit of a contrast with the general open source approach of "I'm writing this software as a service to others, make a donation if you'd like to support my work."
Personally I think the move towards a more structured buy it if you can mindset is great. I've seen too many projects get abandoned because of lack of time and resources and then shift from developer to developer, sometimes getting better, sometimes worse.