Funding is cyclic, going through ups (now, unquestionably) and downs (2008/09 for instance). I'm nothing of an expert, but the alternative approach of raising funding to last not-that-many months to develop further and likely not yet 'be there' seems unwise.
"We intend to use some of this funding as a cushion in case of macroeconomic changes. More than half our series A funds from two years ago are actually still in our bank account today. We could have waited longer to raise this round, but we wanted to extend our runway."
