Hi @ts11,
Looks like your persistence paid off with this issue. Nice going!
First off, I’m no SEO expert.
What I do know, though, is that link elements result in actual HTML anchor tags <a> in the DOM (rendered page), which Google can “see” and thus utilize to glean info about site structure. Bubble actions, OTOH, are just JS code and provide no information about document or site structure.
Also, from a UX perspective, browsers treat links a bit differently. Sometimes this is desirable and sometimes not. For example, most browsers show the full destination URL when the link is hovered. It’s precisely the browser-specific UI handling of links that some devs who are creating SPAs (especially those intended for conversion to native mobile app) prefer to use the navigation action instead - i.e. the clickable element won’t “behave” like a link. Sudsy Page provides both options, and the end result - i.e. intra-page navigation without page reload - is of course the same.
Hope it helps,
-Steve