Brazil Hosting Too Many Tournaments; Copa America This Time Around

Brazil, after hosting the 2013 confederations cup, 2014 World cup, and set to host the 2016 Olympics come August, Brazil will host 2019 Copa America as confirmed by CONMEBOL president Alejandro Dominguez.
Brazil should have hosted 2015 Copa America due to the tournament's alphabetical rotation policy, but Chile were chosen instead due the former's increasingly packed calendar.
However,there is no official confirmation of the 2019 host just yet, until it slipped Dominguez's mouth in an interview at the Copa America Centenario in the United States.
When asked about USA as hosts of the special edition of the Copa, Dominguez said:
"They've been great hosts, just like Chile
were last year and like Brazil will be in 2019.
"People are enjoying it, the football is making a great show, and hopefully the level of football grows and it reaches all the people."
Brazil have hosted the Copa America four times in the past - 1919, 1922, 1949 and 1989 - and they won it on each occasion.
Is Brazil not hosting too many tournaments?