Having been on the platform for a few years and having tried a couple of different uploading styles, I'm inclined to agree with your philosophy, Ghost Dog 
I think that Frequency ultimately is more important than Consistency for independent comics on sites like Tapas and Webtoons. The Featured/Original/Premium works have to release to a set schedule, of course, as they're publishing a formal and professional product. But for self-published series, I genuinely don't think most readers care too much about or pay attention to specific release days or times.
I've had the following experiences with 2 comics:
1.) Very consistent post schedule - Page a week, same day, similar time each week.
My first comic on Tapas and Webtoons started out in this manner. It performed well, and having heard about buffers and consistency I figured that was probably why.
2.) Similar frequency, but less consistency than 1
Towards the mid-point or 2/3 point of the same first comic, I ran out of buffer and didn't want to stop to rebuild it, so I started just working release to release, aiming for my same consistent upload day but often missing it by 1 or more days. What I found during this period is that... no one seemed to mind. I went from ~4 releases a month (weekly) to closer to 3, but the frequency was still up there, so the comic kept doing about as well.
I will say that I do still wish that I had had a buffer during this time, because keeping frequency up without one was kinda stressful lol. Notably I work full time and just do comics as a hobby, though, so it was just a lot of content to have to produce each week with no breaks. Thankfully the comic was only 70 pages long so I only did this for a few months.
3.) Pin-point consistency, but low frequency
My most recent comic project followed this model. I wanted to try doing longer episodes (~3-5 pages per episode rather than 1). which meant that I could only upload once a month. So I picked "First wednesday of each month" and ran with it. Losing the frequency killed it in the short term though lol. Having longer episodes doesn't matter if no one sees it, and having consistency doesn't matter if you don't have many readers. I recently dropped this project (granted, for primarily other reasons) and will take the lesson going forward that frequency is at least as important as consistency when starting out, if not more so.
Bonus.) A case made for inconsistency
I will say, there's a consideration to be made for being a little inconsistent too tbh. I've noticed sometimes when I miss scheduled upload days or times that I often pick up new readers anyways. I think it can be a little dangerous to be too homogenous with your uploads because if certain readers only skim the app certain days or times, they may never see your comic in Fresh. Posting on a variety of days and times has some merit in that regard. For example, I posted my "indefinite hiatus notice" episode on the 2nd comic discussed above, which had been having releases on wednesdays, yesterday (monday) and immediately picked up a new subscriber on Tapas... despite the new episode being a notice that the comic was stopping
presumably they saw it in fresh and thought it looked cool, which I appreciate. And maybe hadn't seen it on the wednesday upload days? Dunno.
Edit: The thing that I do think keeping a schedule is good for, though, is keeping creators on task. Without deadlines, not everyone can maintain that frequency very well- it's easy to be lazy or procrastinate. I'm admittedly like that myself. One release strategy that I am considering in the future is one that I've seen a webtoon canvas author do where they release on dates rather than days of the week. For example, an episode on the 1st of the month, 10th, and 20th, or whatever. That way they have a schedule, keep that frequency up, but also land on different days of the week
I dig it.