Absolutely
He's a perfectly acceptable $500,000/year 4th outfielder
I generally prefer my 4th OF to be fast (which Rajai was) and a good defender (which Rajai was not) so that he can be used as a pinch runner and late game defensive replacement.
Pillar seems to be "OK" at everything, but not great at anything. Though if he's above average against LHP (and he may be) that helps make the platoon work.