Captcha Module in Contact Form

Question

Is there a technical reason that the Captcha Module only works with Business Catalyst or is it an Adobe marketing decision to limit its use to BC, as it did the Contact Form itself until the current version?
I have a site developed in Muse running on a client's Mac OSX 10.8 Server with a contact form in it that is generating some robot-created  spam messages.

Answer 1

The decision to intially release Muse Forms as a BC only feature, and the decision to only support CAPTCHA on BC were both because of technical issues.
BC already had Form processing code, so Muse took advantage of that to deliver Forms. BC forms already had support for CAPTCHAs, so we added that to Muse as well.
Customers requested forms that worked on other web hosts, so the Muse team built a form processing solution using PHP which works on most web hosts. It's additional work to make CAPTCHAs work on other web hosts, and would be more difficult than building simple form processing, so Muse forms hosted not on BC don't have CAPTCHA support yet.
Muse forms hosted not on BC do attempt to do some throttling of form submissions based on the IP address of the submitter to attempt to limit spam submissions somewhat.