The timeskips issue has never been a recent one. The pitfalls of the numerous timeskips in the beginning of the story (Yuji being enrolled in JJH and picking up Nobara in June -> July's suicide mission + meeting the upperclassmen & Kyoto Kids -> August seemingly being skipped outright -> Junpei Arc in September¹, and pretty much everything before Shibuya needing to happen in September or October) have affected the character and relationship growth since the get-go.
I love the tenderness and consoling conviction from Yuji in this scene, but at this point, he's only known Nanami for a few days, and been 'dead' for somewhere between a month and a month and a week or two. So he'd really only known Megumi for like, a month, tops. He'd known Nobara for maybe a couple of weeks. It's unclear how long he'd known Ijichi for, but on-and-off through July, probably...most of these times are guesses, and due to the timeskips, I can't be sure how well or how little Yuji got to known all of these people during the times he could have. Gojo, his longest relationship out of the five he was thinking of, tends to get infrequent and small references to what he did or didn't teach Yuji at various times. There's another moment shortly before this page where Yuji thinks back to a scene we never saw², wherein Gojo apparently taught Yuji how to fight Shikigami users ("When fighting Shikigami Users...go for the User themselves.") But ultimately, the audience hasn't been able to spend more than a few moments' times to get an understanding of Yuji's attachments and his faith in the people he relies on. Nanami gets the most here (Junpei Arc, Chapter 26) since this was the arc he was introduced in, and has been closely mentoring Yuji, but as mentioned, this entire arc takes place in a small timeframe. As a result, the believability of these relationships can easily be called into question, and this scene didn't hit me as hard as it should have.
Culling Games has a similar issue with believability in character dynamics and pacing, largely caused by the frequent timeskips forcing arcs immediately after Shibuya to cram as much as they can into short timeframes. Junpei Arc can get away with this more due to its early placement in the story, but the cracks had been visible well into this arc and even beforehand.
In a very twisted way, the post-unsealing timeskip, from mid-November (somewhere around/after November 16th; EDIT, it's November 19th³) to December 24th, is not particularly unique, though it is one of the largest timeskips (that I can positively identify through information in the manga's pages), possibly only behind the mid-July (?) to September skip. I've mentioned it before, though, that JJK simply could not handle another timeskip of a similar magnitude (or one exceeding, perhaps, a week). This mainly comes down to the bloating of the cast and status quo changes in the Perfect Preparation Arc, the Culling Games Arc, and the aftermath of 212 through 221.
I really wish I could have appreciated his scene more, since it's lovely and well-executed in-of-itself. But since it relies on the preceding groundwork, the shaky foundation undermines an otherwise knockout scene.
¹I am here in my reread, so I'm a little fuzzy on any timeskips after this point.
²Using flashbacks to show the audience new scenes can be effective, but this method gets overused in JJK to fill in gaps caused by not devoting enough time to character-building and cast downtime.
³GUESS WHO FORGOT ABOUT TWO DIFFERENT PANELS IN 221 EXPLICITLY CLARIFYING THE DATE? Blegh, I'll have to be more careful when I eventually fully reread--I have only gone through most 146+ chapters once. Anyways, the panels:
This also means that the full extent of the timeskip ran between 34 and 35 days, depending on if you're counting December 24th or not (this is not counting November 19th itself).
