Sorry if I was unclear. Buddypress is having some issues with 3rd party systems, such as platforms and frameworks because 1.8 was built to work without a template, and most platforms and frameworks need templates to function.
The tweaks needed in DMS are very simple. Just make sure you've added the Content/PostLoop section to each template you build for your Activity, Registration, Members, Groups or any other BP pages. I know this is confusing (doesn't do me much good either ) but even though BP doesn't need templates, you can build templates in DMS. The Content/PostLoop is needed to avoid 404 errors that will show up when your browser tries to pull BP content. Everything else is working fine between the two.
The templates BP doesn't need are the old ones they used to use in the BP Template Pack plugin (you may remember that from 1.7). If you have that plugin active on your site, you'll want to deactivate it, as it can cause some issues. You can theoretically delete it as it's now obsolete.
Framework isn't deprecated, but it's being replaced with DMS, and we only expect to see security updates to it over time. So, the disconnect with Buddypress, created when they discontinued using the Template Pack, isn't going to be fixed, which is why I recommended DMS. I see you're in the process of updating to it now.