Wacky episodes are not new for the X-Files. While the majority are serious, they’ve had their share of light hearted too and the next episode looks like a classic “fun” episode.
Comparing the newest seasons to the older, I would agree that the new ones feel cut at a faster pace, but I don’t think it necessarily makes them bad episodes, just different, but even season 6 or 7 compared to 1 or 2 feels different.
I think the new seasons feel like a lot of other shows running now and the contrast of watching a show that originally ran 25 years ago in modern style is a big contrast. If the show actually aired for 25 years, we’d have seen a slow evolution towards this, but leaping from 2002 to 2016 and 2018 is a lot of subtle change over time that we didn’t get.