This episode got some really good laughs from me. But overall, it was kind of meh. There were some really slow, slack parts to the episode that were just mediocre.
Part of the reason I think it wasn't that great was the lack of more than one plot strand. I've been rewatching Sunny lately, and something I feel I've noticed is that the best episodes are structured kind of like Seinfeld, where several different plot strands are followed and then come together improbably in the end.
I actually think that's a big part of why I haven't enjoyed a lot of the more "meh" episodes, such as the female Boggs episode. Some episodes, like this one (and female Boggs), only have one plot strand and thus don't have as many comedic beats. Other episodes, like the Ski episode, have multiple plot strands but they don't work right because the strands are related or don't make sense.
In this episode, I found it hilarious when Charlie started making decisions that got him hurt by his own traps. But the nods to Home Alone didn't really work for me. Like the aftershave splash, they play as weak parody that doesn't really comment on the original or do anything new with a gag that has been parodied many times already.
As I stated above, I suspect that structurally the reason why these weak gags stayed in the script was the lack of other plot strands. Similar to the problem I had with the ski movie episode, I feel the problems came from the characters in the episode all being in on doing the parody.
It does occur to me that the Lethal Weapon episode did work. But I'm not sure that was actually a parody. My feeling was that it was more of a jumping off point that allowed the writers to play with the characters. I can't say for sure because I wasn't able to watch those episodes on streaming QQ.
TLDR structural issues left the episode with tepid parody watering down some good Sunny humor. Not a bad episode, but the standard is so high on this show. Just having a few really good laughs makes it subpar Sunny.