So, out the door any media playing with steamboat Willie being public domain is suspect because of rat adjacent symbolism?
Counting characters seems like basically numerology, if you want to get to a specific number it's not hard. If you count the space it's 14 characters, but you could just as easily not count the space. What if it had been "infestation: 88”? Not Nazi because of the colon, or do we skip the space now?
Using the conclusion of your argument as evidence to make further leaps is also not super sound reasoning.
It's an asset flip game capitalizing on steamboat Willie and the "make a now public domain children's character scary" money grab. It's exactly what happened with Winnie the Pooh.
It's a horror game with a mouse as the scary creature. The only cultural touchstones we have for mice are either cute, infestation or disease. Exterminators are who you call when you have a mouse problem, and people wearing gas masks are one of the most prolific assets you can buy models for in asset shops.
Dogwostles exist, but it's important to actually look at context.