Perhaps, because AA thinks it won't make money with $29 fares or whatever low price Avelo charges? Makes sense to me. Sometimes, rather than compete and lose money, it's better to redeploy your resources elsewhere -- particularly in a smaller market like HVN. Later, they can re-evaluate, but they don't have to lose alot of money in the short term. Plus, I'm sure that HVN travelers are used to using BDL/HPN/LGA/JFK/etc.