To me it seems like the opposite. The abundance of romance options in DAI makes equality less necessary, because even without it everyone still gets a choice.
I mostly see it this way too.
The fact that DA2 had equal numbers for everybody was said to be a byproduct of their limited resources and desire to give everyone more than one option, not something that was specifically a goal. If they only had the time and money for four romances, that was the only solution that gave people a choice regardless of gender or orientation.
Now that Inquisition has allowed many more romances and many more types of romances, I'm not sure I necessarily see the wisdom in the argument that the numbers need to be equal. If there's a business or writing case to giving extra options to straight female elves or some other combination of gender/sexuality/race, that's the prerogative of the writers and the company. For all we know they started with a goal of 2/2/2, and the last two are severely race-gated to the point of vastly diminishing their potential audience.
I'm well aware of the arguments about Bioware's historical treatment of LGBT content - I spent more than a year fighting homophobes in the ME2 Fight For The Love thread trying to convince people that BW should include s/s content for ME3. But I feel pretty satisfied with what they're doing in Inquisition, and a big part of me struggles to understand the logic of wanting equal numbers for an audience and potential user base that is clearly not going to be as large as many others. At the end of the day, yes, they are a business, and that must be a part of their deliberations even if it doesn't feature in ours.
If the idea of ME2's FFtL campaign was to get Bioware to recognise that there was a market for s/s content, isn't there an obligation on the part of campaigners for s/s content to realise the true size of our market? I feel like we can't just ignore that in this discussion, even if it's being framed around the idea of fairness and equality.
I think equity and choice are paramount, and I don't see anything grievously wrong with DAI's approach to date.