Headscratchers / Bungo to Alchemist

• The introduction of foreign writers also creates a gaping plot hole: why do foreigners with no familiarity or involvement with Japanese and Japanese culture speak the language perfectly and is understood by everyone else, while Koizumi Yakumo speaks with a noticeable accent and has his Japanese skills commented on by other characters?
• Given H. P. Lovecraft's … less than savory views on race in real life, what does he feel about being called upon to live and work in Japan?