As far as I know, from reading the input here, Bru Air has not stated that pilot retention is
"THE" reason to acquire 3 additional medium aircraft, yet
"A" reason...correct me if I'm wrong.
Food for thought: If pilot retention represents a strategic risk with potential crucial consequences in the short term for your company, then why would it be a bad choice to acquire 3 aircraft that add value to your pilot's careers? In any industry, it is a mistake to think that - in general - people build their careers within a company! Nowadays, people think about their career and 'use' companies to achieve their goals...at least, that is what I do

Worldwide, Human Resources managers are confronted with this phenomenon forcing them to rethink the HR-strategy of a company.
Provided that pilot retention is one of many reasons for the acquisition and that it fits within the overall company strategy (which, let's face it, we don't have a clue about because management doesn't ant shouldn't share the strategy with a broad audience), I am in favour! So let's stop bashing every decision that is taken and give people some trust...
Best regards,
bAIR