You're just describing a cooperative effort to obfuscate pricing and frustrate a market. So sure, your company could be blameless and the manufacturers are solely responsible for undermining price signals. I've still described the overall dynamic that your company is participating in. It's effectively based around closed world assumptions of information control, and so it's not surprising that it conflicts with open world ethos like web scraping.

> it seems strange to characterize as "frustrating the market" what we're doing when we cooperate with customers who want to structure their expenses in different ways

I'm characterizing the overall dynamic of keeping market price discovery from working as effectively. How you may be helping customers in other ways is irrelevant.