Yeah, I guess that's valid enough. I'd make a note of that somewhere in the analysis though. In general, you can cut out a decent amount of information from the Overview. For cons, all you really need to mention is its susceptibility to priority (this implies it's frail, so that's unnecessary), and that its generally outclassed as a Swift Swimmer due to its lack of secondary STAB and typing. The lack of STAB on Earth Power doesn't matter that much in terms of its viability in LC because no other Swift Swimmer (or viable Water-type) has access to Earth Power, with or without STAB. This gives it a niche that, while fulfilled in other tiers, is not fulfilled here.
You should also nix the mention that its a relatively unknown Pokemon; one of the biggest benefits to having analyses on the site is that if you don't know what something does when you face it, you can look it up in the Smogdex. This makes that point irrelevant.
Also in Checks and Counters, change the Cottonee part to "Stun Spore" instead of "Thunder Wave" and mention Chespin as a bulky Grass-type that doesn't care about Sludge Bomb (Bulletproof makes it immune).
In Other Options, mention that Scald can be used over HP Electric/Rain Dance to burn Munchlax on the switch. A burned Munchlax is pretty much a useless Munchlax unless it's running RestTalk.
I guess that's a stamp for this after that. I've pretty much wholly QCed this analysis at this point. 2/3 I think?