Yeah, time to step up. Every player needs a setting in period - he's had his. If he destroyed that by failing to maximise his safety and availability - and those of his team-mates - by getting vaccinated, that's his failure. If he had been vaccinated, I'm pretty sure we would have been told.
So, step up now or find yourself on the transfer list next summer. We have way too many passengers as it is. I hope the lad makes it - he has potential - but we can't wait forever for players to make a mark at this club. You either do or you don't, and a couple of seasons is usually more than enough of a proving ground for most.