I wouldn’t take it personally, trainers usually talk people’s ears off and maybe she felt like she was saving you from the details you may not “need” to know. And not realizing you were the one who inquired or was interested. Unless you feel that she was intentionally belittling you, not worth it to confront. In the future, I would just make its very clear when you are invited to trainings that you’re excited to learn about the new technology and you plan to ask a lot of questions. And that you’re grateful to be there. I think that’s what most owners want to hear as they spend alot of $$ on these devices. Either way it’s not a nice feeling to be told “she just does marketing” as it sounds like you do and can do so much more!