Does anyone have this? It seems like a bit of a scam, but I am not sure! Thoughts?

I just found out that the pup I am picking up-end of march-is the largest pup in his litter. My friend told me this not a good thing and I'm a litter concerned so I am reaching out to you guys! 

Is it true that he will be untrainable!?!? I can't imagine that to be fact?!?!?

Thoughts? Thanks all!

Hey guys! Got another pic of our corgi (5 weeks) He's looking like a FLUFFY to me.Am I right? Can you look at my profile pic and let me know your thought?! Thanks! We are happy either way, we had wanted a regular but now we are just excited either way! 3 more weeks!