True... but why would restricting daily votes deal at all with that issue?
On PieFed I've used the Topic Areas to segregate things like News & Politics, and most meme communities, away from my Subscribed feed. Each Topic is but a click away where I can see all of it (regardless of community subscription or not), and I kid you not, actual POETRY manages to make it into my feed!!
So there are other ways to separate memes from other content. Like paid Lemmy 3rd-party apps, or Blaze would use an army of alts, one for each topic area that he wanted to see that day.
Even worse, if someone like PugJesus would start off each day by voting for popular content like memes and news, and only then switch to niche communities to help then grow (a common enough workflow, than I often follow myself as well?), then chopping off votes after the quota is reached (currently: 240 per day iirc) would have the opposite effect than you say: memes and news would receive a much greater proportion of the votes while the tiny niche communities would receive less.
I absolutely do not discount the desire to have better sorting capabilities - on THAT I agree with you 100% that it would be nice to reach THAT goal - but the current implementation won't get you there, plus will have many negative consequences besides. Such as reduced funding support for PieFed overall, and more people choosing to use Lemmy or other alternatives.